Optimization of a Wing-Sail shape for a small boat

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Optimization of a Wing-Sail shape for a small boat"

Transcription

1 STAR Global Conference 2014 Vienna, March Optimization of a Wing-Sail shape for a small boat G. Lombardi, F. Cartoni, M. Maganzi Dept. of Civil and Industrial Engineering of Pisa Aeronautical Section

2 34 th America s Cup A new concept of wing sail The capabilities of the new configuration were deeply analysed 2

3 Scientific Research and Sport The Sport at high level is a powerful engine for the Research, in particular for Aerodynamics Typical fields: Typical cycle: Race cars (F1 on the top) Motorbike Offshore Cycling Skiing Bob Kayak... AMERICA S CUP scientific researches implementation on sport development and testing It is an important way to connect the basic scientific research to the innovation in the industrial world application to commercial production 3

4 The Problem Realization of a Wing-Sail to be used on the boat that will take part to the next edition of the inter-university race «1001 vele» Huge range of Geometrical Parameters which can be modified in order to obtain an improvement in the performances Design of an Optimization Procedure The complexity of the flow that acts on the Wing requires the use of a sophisticated CFD solver to perform the Aerodynamic evaluations inside the optimisation loop 4

5 The boat Max Overall Length = 4,60 m Max Overall Width = 2,10 m 1 Centerboard 1 Rudder Mast Height = Free Sail Plan Max Surface = 33 m² 5

6 Work Strategy Multi-Step Wing-Sail Optimisation Procedure 2-D Airfoil Shape Optimisation at different spanwise sections The results obtained are used to fix the Airfoils Shapes at the analysed sections, in order to realize the parametric geometry of the 3-D Wing-Sail 3-D Wing-Sail Optimisation 6

7 2-D Airfoil Shape Optimisation Optimisation Procedure of the shape and the configuration of the Airfoils at any spanwise section such that, at a fixed value of the Cl coefficient, it is minimized the Cd coefficient, respecting a series of geometrical, structural, technological and regulatory constraints. 7

8 2-D Airfoil Shape Optimisation modefrontier Optimisation Software, developed by Esteco Intuitive management of the Logical Flow Set of Optimisation and DOE Generation Algorithms Statistical Analysis Tools 8

9 2-D Airfoil Shape Optimisation Optimisation Procedure Flow Diagram 9

10 Grid Sensitivity Analysis STAR-CCM+ Grid Sensitivity Analysis The Number of Cells inside the Calculation Domain is modified by controlling the Surface Resolution on the walls of the Airfoils Test Configuration : 10

11 Grid Sensitivity Analysis Cl Cd Number n. celle of Cells (2D) (2-D) n. celle (2D) Number of Cells (2-D) Compromise choice between solution stability and computational costs Number of Cells (2-D) ~ 50k 11

12 Grid Sensitivity Analysis 12

13 Geometry 13

14 Optimisation Parameters 14 Optimisation Parameters Global Parameters Chord GAP R Theta_2 Front Airfoil t_c_1 x_tc_1 3 Shape Parameters Rear Airfoil t_c_2 x_tc_2 3 Shape Parameters 14

15 2-D Airfoil Shape Optimisation The number of Parameters with respect to which we are interested to conduce the Optimisation needs a number of Initial Designs and Generations that is too large to ensure the proper development of the process. Optimisation-by-Steps 15

16 2-D Airfoil Shape Optimisation Design of Experiments creation : SOBOL Genetic Algorithm : MOGA II Population : 250 designs Generations : 20 16

17 Geometry Airfoils generation Script Use of Bézier Curves to realize the shapes 17

18 Geometry Constraints check Geometrical Structural Regulatory 18

19 Geometry Realization of the Calculation Domain 1/40 chord 25 chords 10 chords 14 chords 25 chords 19

20 CFD Analysis Grid Generation 2-D Conversion of the Calculation Domain Imposition of the Physics Models Initial Conditions and Boundary Conditions Calculation of Cd at a fixed value of Cl Authomatisation with Macro and Run on remote HPC 8 CPUs for each simulation (~ 15 minutes) 12 Concurrent Evaluations 20

21 2-D Airfoil Optimisation The genetic algorithm analizes the results and, when a population is completed, the successive is realized focusing the research in the range of each Parameter where statistically there is the highest probability to find the minimum of the objective function; this happens until the end of the procedure. 21

22 Root Airfoil Optimisation Chord = 2400 mm Cl = 0.3 Vapparent = 10 knots Standard Air, M.S.L. Step 1 : Preliminary Optimisation of the Front Airfoil Step 2 : Preliminary Optimisation of the Rear Airfoil Step 3 : Full Optimisation 22

23 Root Airfoil Optimisation Step 1 Preliminary Optimisation of the Front Airfoil 23

24 Root Airfoil Optimisation Step 1 Relative Optimum Configuration 24

25 Root Airfoil Optimisation Step 2 Preliminary Optimisation of the Rear Airfoil 25

26 Root Airfoil Optimisation Step 3 Complete Optimisation 26

27 Analysis of the Results Global Parameters 27

28 Analysis of the Results Front Airfoil Rear Airfoil 28

29 Analysis of the Results Design

30 Analysis of the Results Validation with finer grid 30

31 Analysis of the Results Validation with finer grid 31

32 Analysis of the Results Validation with finer grid Theta_2 Theta_2 32

33 Analysis of the Results Validation with finer grid Theta_2 Theta_2 33

34 Analysis of the Results Validation with finer grid Optimum Theta - Cl Optimum Theta [deg] 34

35 Analysis of the Results Validation with finer grid Comparison between IDs Theta_2 GAP =

36 Analysis of the Results Validation with finer grid Cl =

37 Analysis of the Results Validation with finer grid Cl =

38 Analysis of the Results Validation with finer grid Cl =

39 3-D Wing-Sail Optimisation The 2-D Airfoil Shape Optimisation can be executed at any spanwise position The objective functions and the constraints imposed can be modified referring to the position considered The shape of the Airfoils at different spanwise positions is fixed, depending on the results of the 2-D Optimisation, in order to realize the 3-D wing 39

40 3-D Wing-Sail Optimisation Parametric representation of the Geometry New set of Optimisation Parameters New Objective Functions and constraints 40

41 7 Optimisation Parameters Geometry R_tip Wing Height Root Chord Middle Chord Tip Chord α δ ε Applied to the whole Main Wing with respect to the Wind Applied to the whole Flap, hinged at R on the Main Wing Twist Angle, opposite to δ and proportional to the Height R_middle R_root 41

42 7 Optimisation Parameters Geometry R_tip δ - ε Wing Height Root Chord Middle Chord Tip Chord α δ ε R_middle δ - ε/2 R_root δ 42

43 Physics Models Profile of the Apparent Wind 45 deg Vtw_Root Vwa_Root -Vb 30 deg Domain X Axis The boat moves on a 30 degrees direction with respect to the Global X Axis The Wind blows at 45 degrees with respect to the boat moving direction The True Wind Profile and the Boat Velocity are such that the Apparent Wind at the Root section makes a 0 degrees angle with the Main Wing Chord when α = 0 43

44 Physics Models Vb = 2 m/s = 5,36 m/s (Von Karman Profile) Vwa components (Global Reference Frame) 44

45 Grid The Mesh Settings are chosen with the same criterions described for the 2-D Optimisation ~ 1,7 MLN cells 45

46 3-D Wing-Sail Optimisation Optimisation Parameters Maximum Thrust (Vb Direction) Objective Functions and Contraints Roll Moment on the Mast Root not greater than 1000 N m Plan Surface at rest not greater than 12 m 2 46

47 The HPC 1024 core cluster (~10 Tflops), AMD 1 GB Ram/Core Infiniband DDR fast network (20 Gb/sec) Authomatisation with Macro and Run on remote HPC 128 CPUs for each simulation (~ 30 minutes) 4 Concurrent Evaluations 47

48 3-D Wing-Sail Optimisation Design of Experiments: SOBOL Genetic Algorithm: MOGA II 50 Designs 20 Generations 444 Designs Analized 48

49 Analysis of the Results 49

50 Analysis of the Results Validation with finer grid Design Thrust [N] In the same way, an entire range of evaluations on the Wing-Sail behaviour can be done at any value of the flap and twist angle, for different Moving directions and True Wind Profiles; the Optimised Shape should in fact guarantee its performances in the broadest possible range of race conditions. Alpha 50

51 Analysis of the Results Validation with finer grid 6,5 MLN cells, Run on 256 CPUs 51

52 Analysis of the Results Validation with finer grid 52

53 Analysis of the Results Validation with finer grid 53

54 Analysis of the Results Validation with finer grid 54

55 Conclusions and Future Developments The Optimisation Procedure described in this work is a very powerful instrument to investigate on the influence of a wide range of geometrical parameters on the Wing-Sail behaviour. The Analysis can be conduced, thanks to the versatility of STAR-CCM+ and its strong possibility of customization of Macros, for many operative conditions and for different Objective Functions and Constraints, in order to increase the Wing-Sail performances in all the situations that can occur during a race. The next step of this study will be focused on the utilization of the CD-Adapco ADJOINT FLOW SOLVER tool 55

56 AKNOWLEDGEMENTS Thanks are due to A. Ciampa and E. Mazzoni (INFN of Pisa); through their huge research activity on computer networks, applied on our HPC, they made the computing system very efficient and easy to use, enhancing its performances and improving its reliability. 56

57 THANK YOU fair winds and calm seas! 57

Racecar Rear Wing Setup Optimization via 2D CFD Simulations

Racecar Rear Wing Setup Optimization via 2D CFD Simulations Racecar Rear Wing Setup Optimization via 2D CFD Simulations Simulating Systems Ground Transportation Motorsport Graduate Engineer Test & Development Lotus Cars STAR Global Conference 2014 Vienna Austria

More information

Numerical Analysis of Wings for UAV based on High-Lift Airfoils

Numerical Analysis of Wings for UAV based on High-Lift Airfoils Numerical Analysis of Wings for UAV based on High-Lift Airfoils Sachin Srivastava Department of Aeronautical Engineering Malla Reddy College of Engineering & Technology, Hyderabad, Telangana, India Swetha

More information

STUDIES ON THE OPTIMUM PERFORMANCE OF TAPERED VORTEX FLAPS

STUDIES ON THE OPTIMUM PERFORMANCE OF TAPERED VORTEX FLAPS ICAS 2000 CONGRESS STUDIES ON THE OPTIMUM PERFORMANCE OF TAPERED VORTEX FLAPS Kenichi RINOIE Department of Aeronautics and Astronautics, University of Tokyo, Tokyo, 113-8656, JAPAN Keywords: vortex flap,

More information

Jet Propulsion. Lecture-17. Ujjwal K Saha, Ph. D. Department of Mechanical Engineering Indian Institute of Technology Guwahati

Jet Propulsion. Lecture-17. Ujjwal K Saha, Ph. D. Department of Mechanical Engineering Indian Institute of Technology Guwahati Lecture-17 Prepared under QIP-CD Cell Project Jet Propulsion Ujjwal K Saha, Ph. D. Department of Mechanical Engineering Indian Institute of Technology Guwahati 1 Lift: is used to support the weight of

More information

Wind resource assessment over a complex terrain covered by forest using CFD simulations of neutral atmospheric boundary layer with OpenFOAM

Wind resource assessment over a complex terrain covered by forest using CFD simulations of neutral atmospheric boundary layer with OpenFOAM Wind resource assessment over a complex terrain covered by forest using CFD simulations of neutral atmospheric boundary layer with OpenFOAM Nikolaos Stergiannis nstergiannis.com nikolaos.stergiannis@vub.ac.be

More information

ANALYSIS OF AERODYNAMIC CHARACTERISTICS OF A SUPERCRITICAL AIRFOIL FOR LOW SPEED AIRCRAFT

ANALYSIS OF AERODYNAMIC CHARACTERISTICS OF A SUPERCRITICAL AIRFOIL FOR LOW SPEED AIRCRAFT ANALYSIS OF AERODYNAMIC CHARACTERISTICS OF A SUPERCRITICAL AIRFOIL FOR LOW SPEED AIRCRAFT P.Sethunathan 1, M.Niventhran 2, V.Siva 2, R.Sadhan Kumar 2 1 Asst.Professor, Department of Aeronautical Engineering,

More information

STUDY OF THE INFLUENCE OF A GAP BETWEEN THE WING AND SLOTTED FLAP ON THE AERODYNAMIC CHARACTERISTICS OF ULTRA-LIGHT AIRCRAFT WING AIRFOIL

STUDY OF THE INFLUENCE OF A GAP BETWEEN THE WING AND SLOTTED FLAP ON THE AERODYNAMIC CHARACTERISTICS OF ULTRA-LIGHT AIRCRAFT WING AIRFOIL Review of the Air Force Academy No 3 (30) 2015 STUDY OF THE INFLUENCE OF A GAP BETWEEN THE WING AND SLOTTED FLAP ON THE AERODYNAMIC CHARACTERISTICS OF ULTRA-LIGHT AIRCRAFT WING AIRFOIL 1. INTRODUCTION

More information

Improved Aerodynamic Characteristics of Aerofoil Shaped Fuselage than that of the Conventional Cylindrical Shaped Fuselage

Improved Aerodynamic Characteristics of Aerofoil Shaped Fuselage than that of the Conventional Cylindrical Shaped Fuselage International Journal of Scientific & Engineering Research Volume 4, Issue 1, January-213 1 Improved Aerodynamic Characteristics of Aerofoil Shaped Fuselage than that of the Conventional Cylindrical Shaped

More information

EXPERIMENTAL AND NUMERICAL STUDY OF A TWO- ELEMENT WING WITH GURNEY FLAP

EXPERIMENTAL AND NUMERICAL STUDY OF A TWO- ELEMENT WING WITH GURNEY FLAP 25 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES EXPERIMENTAL AND NUMERICAL STUDY OF A TWO- ELEMENT WING WITH GURNEY FLAP F.M. Catalano PhD.( catalano@sc.usp.br ) *, G. L. Brand * * Aerodynamic

More information

Aerodynamic Analysis of Blended Winglet for Low Speed Aircraft

Aerodynamic Analysis of Blended Winglet for Low Speed Aircraft , July 1-3, 2015, London, U.K. Aerodynamic Analysis of Blended Winglet for Low Speed Aircraft Pooja Pragati, Sudarsan Baskar Abstract This paper provides a practical design of a new concept of massive

More information

Centre for Offshore Renewable Energy Engineering, School of Energy, Environment and Agrifood, Cranfield University, Cranfield, MK43 0AL, UK 2

Centre for Offshore Renewable Energy Engineering, School of Energy, Environment and Agrifood, Cranfield University, Cranfield, MK43 0AL, UK 2 Fluid Structure Interaction Modelling of A Novel 10MW Vertical-Axis Wind Turbine Rotor Based on Computational Fluid Dynamics and Finite Element Analysis Lin Wang 1*, Athanasios Kolios 1, Pierre-Luc Delafin

More information

Numerical study of aeroelasticity of sails

Numerical study of aeroelasticity of sails Numerical study of aeroelasticity of sails Alessandro Leone, Luciano Teresi* SMFM@DiS, Università Roma Tre, Roma, Italy * Corresponding author: Dip. of Studies on Structures, via Corrado Segre 6, 00146

More information

Design Analysis and Optimization Of Wing With Variable Camber Continuous Trailing Edge Flap

Design Analysis and Optimization Of Wing With Variable Camber Continuous Trailing Edge Flap Design Analysis and Optimization Of Wing With Variable Camber Continuous Trailing Edge Flap G.Anandhi a,k.karuppasamy b a P.G Scholar Master of Aeronautical Engineering Regional Centre of Anna University

More information

Static Extended Trailing Edge for Lift Enhancement: Experimental and Computational Studies

Static Extended Trailing Edge for Lift Enhancement: Experimental and Computational Studies Static Extended Trailing Edge for Lift Enhancement: Experimental and Computational Studies T. Liu, J. Montefort, W. Liou Western Michigan University Kalamazoo, MI 49008 and Q. Shams NASA Langley Research

More information

APPLICATION OF RESEARCH RESULTS AT LM WIND POWER

APPLICATION OF RESEARCH RESULTS AT LM WIND POWER APPLICATION OF RESEARCH RESULTS AT LM WIND POWER Herning / March 27 / 2014 By Jesper Madsen Chief Engineer Aerodynamics and Acoustics AGENDA 1. EUDP Projects 1. DANAERO MW 2. Optimization of vortex generators

More information

Numerical and Experimental Investigations of Lift and Drag Performances of NACA 0015 Wind Turbine Airfoil

Numerical and Experimental Investigations of Lift and Drag Performances of NACA 0015 Wind Turbine Airfoil International Journal of Materials, Mechanics and Manufacturing, Vol. 3, No., February 2 Numerical and Experimental Investigations of Lift and Drag Performances of NACA Wind Turbine Airfoil İzzet Şahin

More information

Aerodynamically Efficient Wind Turbine Blade S Arunvinthan 1, Niladri Shekhar Das 2, E Giriprasad 3 (Avionics, AISST- Amity University, India)

Aerodynamically Efficient Wind Turbine Blade S Arunvinthan 1, Niladri Shekhar Das 2, E Giriprasad 3 (Avionics, AISST- Amity University, India) International Journal of Engineering Science Invention ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 3 Issue 4ǁ April 2014ǁ PP.49-54 Aerodynamically Efficient Wind Turbine Blade S Arunvinthan

More information

AERODYNAMIC CHARACTERISTICS OF AIRFOIL WITH SINGLE SLOTTED FLAP FOR LIGHT AIRPLANE WING

AERODYNAMIC CHARACTERISTICS OF AIRFOIL WITH SINGLE SLOTTED FLAP FOR LIGHT AIRPLANE WING HENRI COANDA AIR FORCE ACADEMY ROMANIA INTERNATIONAL CONFERENCE of SCIENTIFIC PAPER AFASES 2015 Brasov, 28-30 May 2015 GENERAL M.R. STEFANIK ARMED FORCES ACADEMY SLOVAK REPUBLIC AERODYNAMIC CHARACTERISTICS

More information

Aerodynamic investigation of Winglets on Wind Turbine Blades using CFD

Aerodynamic investigation of Winglets on Wind Turbine Blades using CFD Risø-R-1543(EN) Aerodynamic investigation of Winglets on Wind Turbine Blades using CFD Jeppe Johansen and Niels N. Sørensen Risø National Laboratory Roskilde Denmark February 26 Author: Jeppe Johansen

More information

Global Flow Solutions Mark Zagar, Cheng Hu-Hu, Yavor Hristov, Søren Holm Mogensen, Line Gulstad Vestas Wind & Site Competence Centre, Technology R&D

Global Flow Solutions Mark Zagar, Cheng Hu-Hu, Yavor Hristov, Søren Holm Mogensen, Line Gulstad Vestas Wind & Site Competence Centre, Technology R&D Global Flow Solutions Mark Zagar, Cheng Hu-Hu, Yavor Hristov, Søren Holm Mogensen, Line Gulstad Vestas Wind & Site Competence Centre, Technology R&D vestas.com Outline The atmospheric modeling capabilities

More information

Computational Investigation of Airfoils with Miniature Trailing Edge Control Surfaces

Computational Investigation of Airfoils with Miniature Trailing Edge Control Surfaces AIAA-24-5 Computational Investigation of Airfoils with Miniature Trailing Edge Control Surfaces Hak-Tae Lee, Ilan M. Kroo Stanford University, Stanford, CA 9435 Abstract Miniature trailing edge effectors

More information

Determination of the wind pressure distribution on the facade of the triangularly shaped high-rise building structure

Determination of the wind pressure distribution on the facade of the triangularly shaped high-rise building structure Determination of the wind pressure distribution on the facade of the triangularly shaped high-rise building structure Norbert Jendzelovsky 1,*, Roland Antal 1 and Lenka Konecna 1 1 STU in Bratislava, Faculty

More information

Computational fluid dynamics analysis of a mixed flow pump impeller

Computational fluid dynamics analysis of a mixed flow pump impeller MultiCraft International Journal of Engineering, Science and Technology Vol. 2, No. 6, 2010, pp. 200-206 INTERNATIONAL JOURNAL OF ENGINEERING, SCIENCE AND TECHNOLOGY www.ijest-ng.com 2010 MultiCraft Limited.

More information

Numerical Simulation of Wave Loads on Static Offshore Structures

Numerical Simulation of Wave Loads on Static Offshore Structures Numerical Simulation of Wave Loads on Static Offshore Structures Hrvoje Jasak, Inno Gatin, Vuko Vukčević Wikki Ltd, United Kingdom Faculty of Mechanical Engineering and Naval Architecture University of

More information

TRAILING EDGE TREATMENT TO ENHANCE HIGH LIFT SYSTEM PERFORMANCE

TRAILING EDGE TREATMENT TO ENHANCE HIGH LIFT SYSTEM PERFORMANCE 28 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES TRAILING EDGE TREATMENT TO ENHANCE HIGH LIFT SYSTEM PERFORMANCE Catalano F.M.*, Ceròn E.D.* Greco P.C. * Laboratory of Aerodynamics EESC-USP Brazil

More information

Experimental Investigation of the Aerodynamics of a Modeled Dragonfly Wing Section

Experimental Investigation of the Aerodynamics of a Modeled Dragonfly Wing Section Region I-MA Student Conference AIAA - 2005 April 8-9, 2005 / Charlottesville, Virginia Experimental Investigation of the Aerodynamics of a Modeled Dragonfly Wing Section Michelle Kwok * and Rajat Mittal

More information

A new methodology to evaluate the flying shape of a sail

A new methodology to evaluate the flying shape of a sail International conference on Graphics Engineering June 19 th 21 st, 2013 Madrid,Spain INGEGRAF ADM AIP PRIMECA A new methodology to evaluate the flying shape of a sail T. Ingrassia (a), V. Nigrelli (a),

More information

Design of the LRP airfoil series using 2D CFD

Design of the LRP airfoil series using 2D CFD Journal of Physics: Conference Series OPEN ACCESS Design of the LRP airfoil series using 2D CFD To cite this article: Frederik Zahle et al 2014 J. Phys.: Conf. Ser. 524 012020 View the article online for

More information

CFD SIMULATION STUDY OF AIR FLOW AROUND THE AIRFOIL USING THE MAGNUS EFFECT

CFD SIMULATION STUDY OF AIR FLOW AROUND THE AIRFOIL USING THE MAGNUS EFFECT Magnus effect, simulation, air flow Patryk SOKOŁOWSKI *, Jacek CZARNIGOWSKI **, Paweł MAGRYTA *** CFD SIMULATION STUDY OF AIR FLOW AROUND THE AIRFOIL USING THE MAGNUS EFFECT Abstract The article presents

More information

AN INVESTIGATION ON VERTICAL TAILPLANE DESIGN

AN INVESTIGATION ON VERTICAL TAILPLANE DESIGN AN INVESTIGATION ON VERTICAL TAILPLANE DESIGN Fabrizio Nicolosi Pierluigi Della Vecchia Danilo Ciliberti Dep. of Aerospace Engineering University of Naples Federico II Dep. of Aerospace Engineering University

More information

CFD SIMULATIONS OF GAS DISPERSION IN VENTILATED ROOMS

CFD SIMULATIONS OF GAS DISPERSION IN VENTILATED ROOMS CFD SIMULATIONS OF GAS DISPERSION IN VENTILATED ROOMS T. Gélain, C. Prévost Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Saclay, France Abstract In order to better understand the risks due

More information

ADVANCES IN AERODYNAMICS OF WIND TURBINE BLADES

ADVANCES IN AERODYNAMICS OF WIND TURBINE BLADES ADVANCES IN AERODYNAMICS OF WIND TURBINE BLADES Herning / October 3 / 2017 By Jesper Madsen Chief Engineer, Aerodynamics & Acoustics WIND ENERGY DENMARK Annual Event 2017 Agenda 1. Aerodynamic design and

More information

ZIN Technologies PHi Engineering Support. PHi-RPT CFD Analysis of Large Bubble Mixing. June 26, 2006

ZIN Technologies PHi Engineering Support. PHi-RPT CFD Analysis of Large Bubble Mixing. June 26, 2006 ZIN Technologies PHi Engineering Support PHi-RPT-0002 CFD Analysis of Large Bubble Mixing Proprietary ZIN Technologies, Inc. For nearly five decades, ZIN Technologies has provided integrated products and

More information

OPTIMIZATION OF SINGLE STAGE AXIAL FLOW COMPRESSOR FOR DIFFERENT ROTATIONAL SPEED USING CFD

OPTIMIZATION OF SINGLE STAGE AXIAL FLOW COMPRESSOR FOR DIFFERENT ROTATIONAL SPEED USING CFD http:// OPTIMIZATION OF SINGLE STAGE AXIAL FLOW COMPRESSOR FOR DIFFERENT ROTATIONAL SPEED USING CFD Anand Kumar S malipatil 1, Anantharaja M.H 2 1,2 Department of Thermal Power Engineering, VTU-RO Gulbarga,

More information

Hydrodynamic analysis of submersible robot

Hydrodynamic analysis of submersible robot International Journal of Advanced Research and Development ISSN: 2455-4030, Impact Factor: RJIF 5.24 www.advancedjournal.com Volume 1; Issue 9; September 2016; Page No. 20-24 Hydrodynamic analysis of submersible

More information

EXPERIMENTAL INVESTIGATION OF THE AERODYNAMIC CHARACTERISTICS OF A K TANDEM CONFIGURATION

EXPERIMENTAL INVESTIGATION OF THE AERODYNAMIC CHARACTERISTICS OF A K TANDEM CONFIGURATION EXPERIMENTAL INVESTIGATION OF THE AERODYNAMIC CHARACTERISTICS OF A K TANDEM CONFIGURATION João Barbosa * & Jorge Gonçalves & Pedro Gamboa Department of Aerospace Sciences Universidade da Beira Interior

More information

Design and Analysis of a High Pressure Ratio Mixed Flow Compressor Stage

Design and Analysis of a High Pressure Ratio Mixed Flow Compressor Stage Design and Analysis of a High Pressure Ratio Mixed Flow Compressor Stage Gaurav Giri 1 and Abdul Nassar. 2 SoftInWay Turbomachinery Solutions Pvt Ltd. 70/10, Cunningham Road, Bangalore, KA, 560052, India

More information

New Technologies applied to the design and optimization of tunnel ventilation systems

New Technologies applied to the design and optimization of tunnel ventilation systems New Technologies applied to the design and optimization of tunnel ventilation systems Ing. Justo Suárez Area Manager - ZITRON Dot. Ing. Massimiliano Bringiotti Managing Director - GEOTUNNEL Ing. Ana Belén

More information

Design of a family of new advanced airfoils for low wind class turbines

Design of a family of new advanced airfoils for low wind class turbines Journal of Physics: Conference Series OPEN ACCESS Design of a family of new advanced airfoils for low wind class turbines To cite this article: Francesco Grasso 2014 J. Phys.: Conf. Ser. 555 012044 View

More information

SAILS AERODYNAMICS. A seatrip around sail shapes. V.G. Chapin, Marine 2017, Nantes

SAILS AERODYNAMICS. A seatrip around sail shapes. V.G. Chapin, Marine 2017, Nantes SAILS AERODYNAMICS A seatrip around sail shapes V.G. Chapin, Marine 2017, Nantes «Ceux qui pensent que c est impossible sont priés de ne pas déranger ceux qui essaient.» OUTLINE Sail: Curry (1925) Sails

More information

A COMPARATIVE STUDY OF MIX FLOW PUMP IMPELLER CFD ANALYSIS AND EXPERIMENTAL DATA OF SUBMERSIBLE PUMP

A COMPARATIVE STUDY OF MIX FLOW PUMP IMPELLER CFD ANALYSIS AND EXPERIMENTAL DATA OF SUBMERSIBLE PUMP IMPACT: International Journal of Research in Engineering & Technology (IMPACT: IJRET) ISSN 2321-8843 Vol. 1, Issue 3, Aug 2013, 57-64 Impact Journals A COMPARATIVE STUDY OF MIX FLOW PUMP IMPELLER CFD ANALYSIS

More information

APPLICATION OF COMPUTATIONAL FLUID DYNAMICS (CFD) IN WIND ANALYSIS OF TALL BUILDINGS. Damith Mohotti, Priyan Mendis, Tuan Ngo

APPLICATION OF COMPUTATIONAL FLUID DYNAMICS (CFD) IN WIND ANALYSIS OF TALL BUILDINGS. Damith Mohotti, Priyan Mendis, Tuan Ngo APPLICATION OF COMPUTATIONAL FLUID DYNAMICS (CFD) IN WIND ANALYSIS OF TALL BUILDINGS Damith Mohotti, Priyan Mendis, Tuan Ngo Department of Infrastructures Engineering, The University of Melbourne, Victoria,

More information

Optimized Natural-Laminar-Flow Airfoils

Optimized Natural-Laminar-Flow Airfoils Optimized Natural-Laminar-Flow Airfoils J. Driver and D. W. Zingg University of Toronto Institute for Aerospace Studies 4925 Dufferin Street, Toronto, Ontario Canada, M3H 5T6 A two-dimensional Newton-Krylov

More information

Is Joined-Wing Configuration Feasible for Transonic Civil Aircraft?

Is Joined-Wing Configuration Feasible for Transonic Civil Aircraft? Is Joined-Wing Configuration Feasible for Transonic Civil Aircraft? A. Rizzi 1, M. Zhang 1, & R. Nangia 2 1 Royal Institute of Technology (KTH) Stockholm, 100 44 Sweden 2 Nangia Aero & University Of Bristol

More information

Optimization of Ejector's Performance With a CFD Analysis. Amanda Mattos Karolline Ropelato Ricardo Medronho

Optimization of Ejector's Performance With a CFD Analysis. Amanda Mattos Karolline Ropelato Ricardo Medronho Optimization of Ejector's Performance With a CFD Analysis Amanda Mattos Karolline Ropelato Ricardo Medronho 2 Introduction Ejectors Equipment industrially used and based on the Venturi phenomena; With

More information

OPTIMIZING THE LENGTH OF AIR SUPPLY DUCT IN CROSS CONNECTIONS OF GOTTHARD BASE TUNNEL. Rehan Yousaf 1, Oliver Scherer 1

OPTIMIZING THE LENGTH OF AIR SUPPLY DUCT IN CROSS CONNECTIONS OF GOTTHARD BASE TUNNEL. Rehan Yousaf 1, Oliver Scherer 1 OPTIMIZING THE LENGTH OF AIR SUPPLY DUCT IN CROSS CONNECTIONS OF GOTTHARD BASE TUNNEL Rehan Yousaf 1, Oliver Scherer 1 1 Pöyry Infra Ltd, Zürich, Switzerland ABSTRACT Gotthard Base Tunnel with its 57 km

More information

Computational Analysis of the S Airfoil Aerodynamic Performance

Computational Analysis of the S Airfoil Aerodynamic Performance Computational Analysis of the 245-3S Airfoil Aerodynamic Performance Luis Velazquez-Araque and Jiří Nožička 2 Department of Mechanical Engineering National University of Táchira, San Cristóbal 5, Venezuela

More information

Analysis of Wind Turbine Blade

Analysis of Wind Turbine Blade International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347-5161 2014 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Analysis

More information

Performance of GOE-387 Airfoil Using CFD

Performance of GOE-387 Airfoil Using CFD International Journal of Aerospace Sciences 2017, 5(1): 1-7 DOI: 10.5923/j.aerospace.20170501.01 Performance of GOE-387 Airfoil Using CFD Mohamed A. Fouad Kandil *, Abdelrady Okasha Elnady Mechatronics

More information

Chapter 5 Wing design - selection of wing parameters - 3 Lecture 21 Topics

Chapter 5 Wing design - selection of wing parameters - 3 Lecture 21 Topics Chapter 5 Wing design - selection of wing parameters - 3 Lecture 21 Topics 5.3.2 Choice of sweep ( ) 5.3.3 Choice of taper ratio ( λ ) 5.3.4 Choice of twist ( ε ) 5.3.5 Wing incidence(i w ) 5.3.6 Choice

More information

Air Craft Winglet Design and Performance: Cant Angle Effect

Air Craft Winglet Design and Performance: Cant Angle Effect Journal of Robotics and Mechanical Engineering Research Air Craft Winglet Design and Performance: Cant Angle Effect Eslam Said Abdelghany 1, Essam E Khalil 2*, Osama E Abdellatif 3 and Gamal elhariry 4

More information

APPLICATION OF PUSHOVER ANALYSIS ON EARTHQUAKE RESPONSE PREDICATION OF COMPLEX LARGE-SPAN STEEL STRUCTURES

APPLICATION OF PUSHOVER ANALYSIS ON EARTHQUAKE RESPONSE PREDICATION OF COMPLEX LARGE-SPAN STEEL STRUCTURES APPLICATION OF PUSHOVER ANALYSIS ON EARTHQUAKE RESPONSE PREDICATION OF COMPLEX LARGE-SPAN STEEL STRUCTURES J.R. Qian 1 W.J. Zhang 2 and X.D. Ji 3 1 Professor, 3 Postgraduate Student, Key Laboratory for

More information

AIRFOIL PROFILE OPTIMIZATION OF AN AIR SUCTION EQUIPMENT WITH AN AIR DUCT

AIRFOIL PROFILE OPTIMIZATION OF AN AIR SUCTION EQUIPMENT WITH AN AIR DUCT THERMAL SCIENCE, Year 2015, Vol. 19, No. 4, pp. 1217-1222 1217 AIRFOIL PROFILE OPTIMIZATION OF AN AIR SUCTION EQUIPMENT WITH AN AIR DUCT by Li QIU a,b, Rui WANG a,*, Xiao-Dong CHEN b, and De-Peng WANG

More information

EE 364B: Wind Farm Layout Optimization via Sequential Convex Programming

EE 364B: Wind Farm Layout Optimization via Sequential Convex Programming EE 364B: Wind Farm Layout Optimization via Sequential Convex Programming Jinkyoo Park 1 Introduction In a wind farm, the wakes formed by upstream wind turbines decrease the power outputs of downstream

More information

Voith Water Tractor Improved Manoeuvrability and Seakeeping Behaviour

Voith Water Tractor Improved Manoeuvrability and Seakeeping Behaviour Amsterdam, The Netherlands Organised by the ABR Company Ltd Day Paper No. 2 9 Voith Water Tractor Improved Manoeuvrability and Seakeeping Behaviour Dr Dirk Jürgens and Michael Palm, Voith Turbo Schneider

More information

Comparing GU & Savier airfoil equipped half canard In S4 wind tunnel (France)

Comparing GU & Savier airfoil equipped half canard In S4 wind tunnel (France) Some notes about Comparing GU & Savier airfoil equipped half canard In S4 wind tunnel (France) Matthieu Scherrer Adapted from Charlie Pujo & Nicolas Gorius work Contents Test conditions 3. S-4 Wind-tunnel.............................................

More information

EFFECT OF GURNEY FLAPS AND WINGLETS ON THE PERFORMANCE OF THE HAWT

EFFECT OF GURNEY FLAPS AND WINGLETS ON THE PERFORMANCE OF THE HAWT Chapter-6 EFFECT OF GURNEY FLAPS AND WINGLETS ON THE PERFORMANCE OF THE HAWT 6.1 Introduction The gurney flap (wicker bill) was a small flat tab projecting from the trailing edge of a wing. Typically it

More information

Numerical simulation and analysis of aerodynamic drag on a subsonic train in evacuated tube transportation

Numerical simulation and analysis of aerodynamic drag on a subsonic train in evacuated tube transportation Journal of Modern Transportation Volume 20, Number 1, March 2012, Page 44-48 Journal homepage: jmt.swjtu.edu.cn DOI: 10.1007/BF03325776 1 Numerical simulation and analysis of aerodynamic drag on a subsonic

More information

DESIGN OF THE MODERN FAMILY OF HELICOPTER AIRFOILS

DESIGN OF THE MODERN FAMILY OF HELICOPTER AIRFOILS DESIGN OF THE MODERN FAMILY OF HELICOPTER AIRFOILS Wojciech KANIA, Wienczys!aw STALEWSKI, BogumHa ZWIERCHANOWSKA Institute of Aviation Summary The paper presents results of numerical design and experimental

More information

Database of Sail Shapes vs. Sail Performance and Validation of Numerical Calculation for Upwind Condition

Database of Sail Shapes vs. Sail Performance and Validation of Numerical Calculation for Upwind Condition THE 18 th CHESAPEAKE SAILING YACHT SYMPOSIUM ANNAPOLIS, MARYLAND, MARCH 2007 Database of Sail Shapes vs. Sail Performance and Validation of Numerical Calculation for Upwind Condition Yutaka Masuyama, Kanazawa

More information

NUMERICAL INVESTIGATION OF FLOW OVER MULTI- ELEMENT AIRFOILS WITH LIFT-ENHANCING TABS

NUMERICAL INVESTIGATION OF FLOW OVER MULTI- ELEMENT AIRFOILS WITH LIFT-ENHANCING TABS 28 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES NUMERICAL INVESTIGATION OF FLOW OVER MULTI- ELEMENT AIRFOILS WITH LIFT-ENHANCING TABS Zhenhui Zhang, Dong Li National Key Laboratory of Science

More information

Control Strategies for operation of pitch regulated turbines above cut-out wind speeds

Control Strategies for operation of pitch regulated turbines above cut-out wind speeds Control Strategies for operation of pitch regulated turbines above cut-out wind speeds Helen Markou 1 Denmark and Torben J. Larsen, Risø-DTU, P.O.box 49, DK-4000 Roskilde, Abstract The importance of continuing

More information

Blade Design and Performance Analysis of Wind Turbine

Blade Design and Performance Analysis of Wind Turbine International Journal of ChemTech Research CODEN( USA): IJCRGG ISSN : 0974-4290 Vol.5, No.2, pp 1054-1061, April-June 2013 ICGSEE-2013[14 th 16 th March 2013] International Conference on Global Scenario

More information

HIGH-LIFT BEHAVIOUR OF HALF-MODELS AT FLIGHT REYNOLDS NUMBERS

HIGH-LIFT BEHAVIOUR OF HALF-MODELS AT FLIGHT REYNOLDS NUMBERS TASK QUARTERLY 10 No 2, 191 206 HIGH-LIFT BEHAVIOUR OF HALF-MODELS AT FLIGHT REYNOLDS NUMBERS PIOTR DOERFFER AND OSKAR SZULC Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952

More information

Preliminary Analysis of Drag Reduction for The Boeing

Preliminary Analysis of Drag Reduction for The Boeing Preliminary Analysis of Drag Reduction for The Boeing 747-400 By: Chuck Dixon, Chief Scientist, Vortex Control Technologies LLC 07. 31. 2012 Potential for Airflow Separation That Can Be Reduced By Vortex

More information

AERODYNAMIC CHARACTERISTICS OF SPIN PHENOMENON FOR DELTA WING

AERODYNAMIC CHARACTERISTICS OF SPIN PHENOMENON FOR DELTA WING ICAS 2002 CONGRESS AERODYNAMIC CHARACTERISTICS OF SPIN PHENOMENON FOR DELTA WING Yoshiaki NAKAMURA (nakamura@nuae.nagoya-u.ac.jp) Takafumi YAMADA (yamada@nuae.nagoya-u.ac.jp) Department of Aerospace Engineering,

More information

LEADING-EDGE VORTEX FLAPS FOR SUPERSONIC TRANSPORT CONFIGURATION -EFFECTS OF FLAP CONFIGURATIONS AND ROUNDED LEADING-EDGES-

LEADING-EDGE VORTEX FLAPS FOR SUPERSONIC TRANSPORT CONFIGURATION -EFFECTS OF FLAP CONFIGURATIONS AND ROUNDED LEADING-EDGES- ICAS 2002 CONGRESS LEADING-EDGE VORTEX FLAPS FOR SUPERSONIC TRANSPORT CONFIGURATION -EFFECTS OF FLAP CONFIGURATIONS AND ROUNDED LEADING-EDGES- Kenichi RINOIE*, Dong Youn KWAK**, Katsuhiro MIYATA* and Masayoshi

More information

Abstract. 1 Introduction

Abstract. 1 Introduction Developments in modelling ship rudder-propeller interaction A.F. Molland & S.R. Turnock Department of Ship Science, University of Southampton, Highfield, Southampton, S017 IBJ, Hampshire, UK Abstract A

More information

JAR-23 Normal, Utility, Aerobatic, and Commuter Category Aeroplanes \ Issued 11 March 1994 \ Section 1- Requirements \ Subpart C - Structure \ General

JAR-23 Normal, Utility, Aerobatic, and Commuter Category Aeroplanes \ Issued 11 March 1994 \ Section 1- Requirements \ Subpart C - Structure \ General JAR 23.301 Loads \ JAR 23.301 Loads (a) Strength requirements are specified in terms of limit loads (the maximum loads to be expected in service) and ultimate loads (limit loads multiplied by prescribed

More information

CFD Analysis and Experimental Study on Impeller of Centrifugal Pump Alpeshkumar R Patel 1 Neeraj Dubey 2

CFD Analysis and Experimental Study on Impeller of Centrifugal Pump Alpeshkumar R Patel 1 Neeraj Dubey 2 IJSRD - International Journal for Scientific Research & Development Vol. 3, Issue 2, 21 ISSN (online): 2321-613 Alpeshkumar R Patel 1 Neeraj Dubey 2 1 PG Student 2 Associate Professor 1,2 Department of

More information

Formula SAE Aerodynamic Package Design

Formula SAE Aerodynamic Package Design Formula SAE Aerodynamic Package Design Phase III Report December 5, 2016 Justin Hansen Austin Ma Gordon Miller Garrett Schultz Sharegh Yusefi i 11020 86 Ave NW Edmonton, Alberta T6G 2C6 (780)-690-4124

More information

Aerodynamic Design and Blade Angle Analysis of a Small Horizontal Axis Wind Turbine

Aerodynamic Design and Blade Angle Analysis of a Small Horizontal Axis Wind Turbine American Journal of Modern Energy 17; 3(): 3-37 http://www.sciencepublishinggroup.com/j/ajme doi: 1.11648/j.ajme.173.1 Aerodynamic Design and Blade Angle Analysis of a Small Horizontal Axis Wind Turbine

More information

FLOW CONTROL ON HELICOPTER-ROTOR BLADES VIA ACTIVE GURNEY FLAP Wienczyslaw Stalewski* *Institute of Aviation, Poland

FLOW CONTROL ON HELICOPTER-ROTOR BLADES VIA ACTIVE GURNEY FLAP Wienczyslaw Stalewski* *Institute of Aviation, Poland FLOW CONTROL ON HELICOPTER-ROTOR BLADES VIA ACTIVE GURNEY FLAP Wienczyslaw Stalewski* *Institute of Aviation, Poland Keywords: helicopter rotor blades, flow control, Active Gurney Flap, rotorcraft performance

More information

OPTIMIZATION OF A WAVE CANCELLATION MULTIHULL SHIP USING CFD TOOLS

OPTIMIZATION OF A WAVE CANCELLATION MULTIHULL SHIP USING CFD TOOLS OPTIMIZATION OF A AVE CANCELLATION MULTIHULL SHIP USING CFD TOOLS C. Yang, R. Löhner and O. Soto School of Computational Sciences, George Mason University Fairfax VA 030-4444, USA ABSTRACT A simple CFD

More information

Low-Speed Wind-Tunnel Investigation of the Stability and Control Characteristics of a Series of Flying Wings With Sweep Angles of 50

Low-Speed Wind-Tunnel Investigation of the Stability and Control Characteristics of a Series of Flying Wings With Sweep Angles of 50 NASA Technical Memorandum 464 Low-Speed Wind-Tunnel Investigation of the Stability and Control Characteristics of a Series of Flying Wings With Sweep Angles of 5 Scott P. Fears Lockheed Engineering & Sciences

More information

WIND LOADS / MOORING & FISH TAILING. Arjen Koop, Senior Project Manager Offshore Rogier Eggers, Project Manager Ships

WIND LOADS / MOORING & FISH TAILING. Arjen Koop, Senior Project Manager Offshore Rogier Eggers, Project Manager Ships WIND LOADS / MOORING & FISH TAILING Arjen Koop, Senior Project Manager Offshore Rogier Eggers, Project Manager Ships OVERVIEW Wind Loads Wind shielding Fish tailing? 2 WIND LOADS FOR OFFSHORE MARS TLP

More information

The Aerodynamic Design and Investigation of Loading Distribution of a Mixed Flow Compressor

The Aerodynamic Design and Investigation of Loading Distribution of a Mixed Flow Compressor Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 00 (2014) 000 000 www.elsevier.com/locate/procedia APISAT2014, 2014 Asia-Pacific International Symposium on Aerospace Technology,

More information

Optimization of the Surfboard Fin Shape using Computational Fluid Dynamics and Genetic Algorithms

Optimization of the Surfboard Fin Shape using Computational Fluid Dynamics and Genetic Algorithms Optimization of the Surfboard Fin Shape using Computational Fluid Dynamics and Genetic Algorithms Konstantinos Sakellariou, Zeeshan A. Rana, Karl W. Jenkins School of Aerospace, Transport Systems and Manufacturing,

More information

STAR European Conference 2011

STAR European Conference 2011 STAR European Conference 2011 Oggetto: Data: Aircraft passenger cabin thermal comfort analysis by means of integrated mono dimensionałcfd approach 22-23 March 2011 Ver.: P. Borrelli, On Board General Systems,

More information

Wind tunnel effects on wingtip vortices

Wind tunnel effects on wingtip vortices 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition 4-7 January 2010, Orlando, Florida AIAA 2010-325 Wind tunnel effects on wingtip vortices Xin Huang 1, Hirofumi

More information

Aerospace Design Project. Design of a class-3 Ultralight airplane

Aerospace Design Project. Design of a class-3 Ultralight airplane Aerospace Design Project Design of a class-3 Ultralight airplane Ludovic Noels Grigorios Dimitriadis L.Noels@ulg.ac.be gdimitriadis@ulg.ac.be 1. Context Groups from 4 to 5 students will design a class-3

More information

Validation of Measurements from a ZephIR Lidar

Validation of Measurements from a ZephIR Lidar Validation of Measurements from a ZephIR Lidar Peter Argyle, Simon Watson CREST, Loughborough University, Loughborough, United Kingdom p.argyle@lboro.ac.uk INTRODUCTION Wind farm construction projects

More information

Wind Tunnel Testing Guidance. Arjan Voogt

Wind Tunnel Testing Guidance. Arjan Voogt Wind Tunnel Testing Guidance Arjan Voogt WIND TUNNEL TESTING Proven method for airplanes, city planning, car design competitive cycling, rockets trajectories and skiing BUT NOT ACCEPTED BY USCG IN STABILITY

More information

PHASE 1 WIND STUDIES REPORT

PHASE 1 WIND STUDIES REPORT PHASE 1 WIND STUDIES REPORT ENVIRONMENTAL STUDIES AND PRELIMINARY DESIGN FOR A SUICIDE DETERRENT SYSTEM Contract 2006-B-17 24 MAY 2007 Golden Gate Bridge Highway and Transportation District Introduction

More information

for Naval Aircraft Operations

for Naval Aircraft Operations Seakeeping Assessment of Large Seakeeping Assessment of Large Trimaran Trimaran for Naval Aircraft Operations for Naval Aircraft Operations Presented by Mr. Boyden Williams, Mr. Lars Henriksen (Viking

More information

University of Bristol - Explore Bristol Research. Publisher's PDF, also known as Version of record

University of Bristol - Explore Bristol Research. Publisher's PDF, also known as Version of record Liu, X., Azarpeyvand, M., & Joseph, P. (2015). On the acoustic and aerodynamic performance of serrated airfoils. Paper presented at The 22nd International Congress on Sound and Vibration, Florence, France.

More information

Aero Club. Introduction to Flight

Aero Club. Introduction to Flight Aero Club Presents Introduction to RC Modeling Module 1 Introduction to Flight Centre For Innovation IIT Madras Page2 Table of Contents Introduction:... 3 How planes fly How is lift generated?... 3 Forces

More information

High Swept-back Delta Wing Flow

High Swept-back Delta Wing Flow Advanced Materials Research Submitted: 2014-06-25 ISSN: 1662-8985, Vol. 1016, pp 377-382 Accepted: 2014-06-25 doi:10.4028/www.scientific.net/amr.1016.377 Online: 2014-08-28 2014 Trans Tech Publications,

More information

Investigation on Divergent Exit Curvature Effect on Nozzle Pressure Ratio of Supersonic Convergent Divergent Nozzle

Investigation on Divergent Exit Curvature Effect on Nozzle Pressure Ratio of Supersonic Convergent Divergent Nozzle RESEARCH ARTICLE OPEN ACCESS Investigation on Divergent Exit Curvature Effect on Nozzle Pressure Ratio of Supersonic Convergent Divergent Nozzle Shyamshankar.M.B*, Sankar.V** *(Department of Aeronautical

More information

Wind loads investigations of HAWT with wind tunnel tests and site measurements

Wind loads investigations of HAWT with wind tunnel tests and site measurements loads investigations of HAWT with wind tunnel tests and site measurements Shigeto HIRAI, Senior Researcher, Nagasaki R&D Center, Technical Headquarters, MITSUBISHI HEAVY INDSUTRIES, LTD, Fukahori, Nagasaki,

More information

Development of Biomimicry Wind Louver Surface Design

Development of Biomimicry Wind Louver Surface Design International Proceedings of Chemical, Biological and Environmental Engineering, V0l. 93 (2016) DOI: 10.7763/IPCBEE. 2016. V93. 6 Development of Biomimicry Wind Louver Surface Design Jaepil Choi 1, Donghwa

More information

DEFINITIONS. Aerofoil

DEFINITIONS. Aerofoil Aerofoil DEFINITIONS An aerofoil is a device designed to produce more lift (or thrust) than drag when air flows over it. Angle of Attack This is the angle between the chord line of the aerofoil and the

More information

WAKE MODELING OF AN OFFSHORE WINDFARM USING OPENFOAM

WAKE MODELING OF AN OFFSHORE WINDFARM USING OPENFOAM WAKE MODELING OF AN OFFSHORE WINDFARM USING OPENFOAM Alireza Javaheri, Beatriz Canadillas UL International GmbH (DEWI), Ebertstr. 96, 26382 Wilhelmshaven, Germany Summery The premier task of this work

More information

Numerical Simulation of Flow and Determination of Aerodynamic Forces in the Balanced Control Valve

Numerical Simulation of Flow and Determination of Aerodynamic Forces in the Balanced Control Valve EPJ Web of Conferences 45, 01062 (2013) DOI: 10.1051/ epjconf/ 20134501062 C Owned by the authors, published by EDP Sciences, 2013 Numerical Simulation of Flow and Determination of Aerodynamic Forces in

More information

Aerofoil Profile Analysis and Design Optimisation

Aerofoil Profile Analysis and Design Optimisation Journal of Aerospace Engineering and Technology Volume 3, Issue 2, ISSN: 2231-038X Aerofoil Profile Analysis and Design Optimisation Kondapalli Siva Prasad*, Vommi Krishna, B.B. Ashok Kumar Department

More information

1. A tendency to roll or heel when turning (a known and typically constant disturbance) 2. Motion induced by surface waves of certain frequencies.

1. A tendency to roll or heel when turning (a known and typically constant disturbance) 2. Motion induced by surface waves of certain frequencies. Department of Mechanical Engineering Massachusetts Institute of Technology 2.14 Analysis and Design of Feedback Control Systems Fall 2004 October 21, 2004 Case Study on Ship Roll Control Problem Statement:

More information

Reprocessed QuikSCAT (V04) Wind Vectors with Ku-2011 Geophysical Model Function

Reprocessed QuikSCAT (V04) Wind Vectors with Ku-2011 Geophysical Model Function Reprocessed QuikSCAT (V04) Wind Vectors with Ku-2011 Geophysical Model Function Lucrezia Ricciardulli and Frank Wentz Introduction In April 2011, we reprocessed the QuikSCAT ocean wind vectors using a

More information

Study on the Shock Formation over Transonic Aerofoil

Study on the Shock Formation over Transonic Aerofoil Advances in Aerospace Science and Applications. ISSN 2277-3223 Volume 3, Number 2 (2013), pp. 113-118 Research India Publications http://www.ripublication.com/aasa.htm Study on the Shock Formation over

More information

EXPERIMENTAL INVESTIGATION OF LIFT & DRAG PERFORMANCE OF NACA0012 WIND TURBINE AEROFOIL

EXPERIMENTAL INVESTIGATION OF LIFT & DRAG PERFORMANCE OF NACA0012 WIND TURBINE AEROFOIL EXPERIMENTAL INVESTIGATION OF LIFT & DRAG PERFORMANCE OF NACA0012 WIND TURBINE AEROFOIL Mr. Sandesh K. Rasal 1, Mr. Rohan R. Katwate 2 1 PG Student, 2 Assistant Professor, DYPSOEA Ambi Talegaon, Heat Power

More information

Computational Fluid Dynamic Air Flow Analysis Report

Computational Fluid Dynamic Air Flow Analysis Report Integrated Intermediate Care Hub (IIHC) Computational Fluid Dynamic Air Flow Analysis Report Prepared for: ZEB-Technology Pte. Ltd 17 Kaki Bukit Place, Singapore 416195 +65 3109 1288 Prepared by: Viet

More information