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

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

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

Transcription

1 Wind resource assessment over a complex terrain covered by forest using CFD simulations of neutral atmospheric boundary layer with OpenFOAM Nikolaos Stergiannis nstergiannis.com

2 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 1 Wind Energy Ø One of the fastest growing industries Ø EU Strategy on Climate Change for 2020 and beyond Ø 2015 a new record year: annual installations crossed the 62 GW Global cumulative installed wind capacity (GWEC Report 2016)

3 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 2 Industrial Challenges Wind Turbine Design ü rotor aerodynamics ü mechanical loads ü incoming flow field Wind Farm Design ü wind resource assessment ü wake interactions and losses ü CAPEX & OPEX Wind Farm Optimization ü terrain effects ü wake effects ü power output Wake Effects deficit of wind speed increasing turbulence

4 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 3 Total duration: 4 years Aim of the project: Develop a non-deterministic CFD software for wind energy Key points: Improved mathematical model for the wind turbines Atmospheric Boundary Layer over complex and flat terrain Uncertainty quantification on the wind conditions Open-source software (OpenFOAM) Final goal: Accurate and fast simulations of onshore and offshore wind farms

5 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 4 Wind resource assessment a crucial process for the successful development of a wind farm project Motivation growth of wind sector scarcity of available land wind energy installation on complex terrain is expected to increase low-cost industrial models fail in very complex sites inaccurate energy estimation

6 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 5 Site under investigation 70% covered by thick forest trees of 15 to 20 m height mainly neutral stratification unidirectional wind from ESE

7 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 6 Site under investigation

8 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 6 Site under investigation Wind Mast 2 Wind Mast 1

9 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 6 Site under investigation Wind Mast 2 Wind Mast 1 NW Wind direction

10 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 7 Computational domain generated with blockmesh snappyhexmesh final mesh characteristics 18 blocks 7.7Mi cells 6km x 6km x 3km 3 layers 1st cell height = 0.9m

11 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 7 Computational domain generated with blockmesh snappyhexmesh final mesh characteristics 18 blocks 7.7Mi cells 6km x 6km x 3km 3 layers 1st cell height = 0.9m

12 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 7 Computational domain generated with blockmesh snappyhexmesh final mesh characteristics 18 blocks 7.7Mi cells 6km x 6km x 3km 3 layers 1st cell height = 0.9m

13 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 8 Governing equations & boundary conditions assumptions* neutral ABL stratification homogeneous flow local equilibrium of k and ε * Richards, P. J., Hoxey R. P. Appropriate boundary conditions for computational wind engineering models using the k-ε turbulence model. 1993

14 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 9 Initial conditions terrain surface characteristic* forest canopy: z0 = 0.8 m * Troen, I., Lundtang Petersen, E.: European Wind Atlas. 1989

15 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 10 Numerical modelling Incompressible steady state solver simplefoam Turbulence modelling RANS modified k-ε turbulence model 2nd order numerical schemes 5000 iterations in total solution converged in 1500 iterations 10 hours on 16 CPUs of 3.3GHz Model coefficients * * Prospathopoulos J. M., Politis E. S. and Chaviaropoulos P. K.: Modelling wind turbine wake in complex terrain.

16 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 11 Preliminary results and discussion WM-1 at 78m height WM-2 at 78m height WM-1 CFD simulations WM-2 CFD simulations WM WM WM-2 CFD WM-1 CFD Height [m] 40 0 Velocity difference CFD: m/s Observations: m/s Axial velocity [m/s]

17 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 11 Preliminary results and discussion WM-1 at 78m height WM-2 at 78m height WM-1 CFD simulations WM-2 CFD simulations WM WM WM-2 CFD WM-1 CFD Height [m] 40 0 agreement in the absolute values is much less Velocity difference CFD: m/s Observations: m/s Axial velocity [m/s]

18 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 12 Conclusions Test case over a very complex site Terrain covered with dense forest canopy Neutral stratification and constant roughness have been assumed CFD simulations were capable to predict the velocity difference between wind masts Absolute values were not correct since the profile of WM1 used at the inlet Challenge Impose the correct inlet conditions to derived the desired profile at the WM1 location use a flat terrain before? use mesoscale models?

19 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 13 Future work Simulate over different wind sectors and compare with observations Include the local roughness map with non-uniform roughness length z0 Use mesoscale model to predict the inlet conditions Compare with MeteoDyn

20 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 14 QUESTIONS? A person who never made a mistake never tried anything new Albert Einstein

21 Wind resource assessment over a complex terrain covered by forest using 27/04/ slide 14 QUESTIONS? A person who never made a mistake never tried anything new Albert Einstein

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

Are Advanced Wind Flow Models More Accurate? A Test of Four Models

Are Advanced Wind Flow Models More Accurate? A Test of Four Models Are Advanced Wind Flow Models More Accurate? A Test of Four Models Philippe Beaucage, PhD Senior Research Scientist Michael C. Brower, PhD Chief Technical Officer Brazil Wind Power Conference 2012 Albany

More information

Modelling atmospheric stability with CFD: The importance of tall profiles

Modelling atmospheric stability with CFD: The importance of tall profiles ENERGY Modelling atmospheric stability with CFD: The importance of tall profiles VindKraftNet Seminar on Profiles Jean-François Corbett, Global Head of CFD Service 1 SAFER, SMARTER, GREENER DNV GL CFD

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

Tidal influence on offshore and coastal wind resource predictions at North Sea. Barbara Jimenez 1,2, Bernhard Lange 3, and Detlev Heinemann 1.

Tidal influence on offshore and coastal wind resource predictions at North Sea. Barbara Jimenez 1,2, Bernhard Lange 3, and Detlev Heinemann 1. Tidal influence on offshore and coastal wind resource predictions at North Sea Barbara Jimenez 1,2, Bernhard Lange 3, and Detlev Heinemann 1. 1 ForWind - Center for Wind Energy Research, University of

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

Wind shear and its effect on wind turbine noise assessment Report by David McLaughlin MIOA, of SgurrEnergy

Wind shear and its effect on wind turbine noise assessment Report by David McLaughlin MIOA, of SgurrEnergy Wind shear and its effect on wind turbine noise assessment Report by David McLaughlin MIOA, of SgurrEnergy Motivation Wind shear is widely misunderstood in the context of noise assessments. Bowdler et

More information

Fuga. - Validating a wake model for offshore wind farms. Søren Ott, Morten Nielsen & Kurt Shaldemose Hansen

Fuga. - Validating a wake model for offshore wind farms. Søren Ott, Morten Nielsen & Kurt Shaldemose Hansen Fuga - Validating a wake model for offshore wind farms Søren Ott, Morten Nielsen & Kurt Shaldemose Hansen 28-06- Outline What is Fuga? Model validation: which assumptions are tested? Met data interpretation:

More information

Available online at ScienceDirect. Procedia Engineering 126 (2015 )

Available online at  ScienceDirect. Procedia Engineering 126 (2015 ) Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 126 (2015 ) 542 548 7th International Conference on Fluid Mechanics, ICFM7 Terrain effects on characteristics of surface wind

More information

Session 7: Wind Modelling

Session 7: Wind Modelling State of the Art in Application of Flow Models for Micrositing M. Strack, V. Riedel, DEWI Wilhelmshaven German Wind Energy Institute GmbH (DEWI), Ebertstr. 96, D-26382 Wilhelmshaven, email: m.strack@dewi.de

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

The Wind Resource: Prospecting for Good Sites

The Wind Resource: Prospecting for Good Sites The Wind Resource: Prospecting for Good Sites Bruce Bailey, President AWS Truewind, LLC 255 Fuller Road Albany, NY 12203 bbailey@awstruewind.com Talk Topics Causes of Wind Resource Impacts on Project Viability

More information

Optimization of a Wing-Sail shape for a small boat

Optimization of a Wing-Sail shape for a small boat STAR Global Conference 2014 Vienna, March 17-19 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

More information

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

Wind Plant Simulation and Validation Jonathan Naughton Department of Mechanical Engineering University of Wyoming

Wind Plant Simulation and Validation Jonathan Naughton Department of Mechanical Engineering University of Wyoming Wind Plant Simulation and Validation Jonathan Naughton Department of Mechanical Engineering University of Wyoming 1 Overview Wind s Success Wind s Challenges Wind Plant Simulation and Validation Summary

More information

FLOW CONSIDERATIONS IN INDUSTRIAL SILENCER DESIGN

FLOW CONSIDERATIONS IN INDUSTRIAL SILENCER DESIGN FLOW CONSIDERATIONS IN INDUSTRIAL SILENCER DESIGN George Feng, Kinetics Noise Control, Inc., 3570 Nashua Drive, Mississauga, Ontario Vadim Akishin, Kinetics Noise Control, Inc., 3570 Nashua Drive, Mississauga,

More information

Large eddy simulation of atmospheric flows over the Bolund hill

Large eddy simulation of atmospheric flows over the Bolund hill Large eddy simulation of atmospheric flows over the Bolund hill Ashvinkumar Chaudhari* 1), Mahdi Ghaderi Masouleh 1), Gábor Janiga 2), Jari Hämäläinen 1), Antti Hellsten 3) 1) Department of Mathematics

More information

Complex terrain wind resource estimation with the wind-atlas method: Prediction errors using linearized and nonlinear CFD micro-scale models

Complex terrain wind resource estimation with the wind-atlas method: Prediction errors using linearized and nonlinear CFD micro-scale models Downloaded from orbit.dtu.dk on: Dec 17, 2017 Complex terrain wind resource estimation with the wind-atlas method: Prediction errors using linearized and nonlinear CFD micro-scale models Troen, Ib; Bechmann,

More information

Conditions for Offshore Wind Energy Use

Conditions for Offshore Wind Energy Use Carl von Ossietzky Universität Oldenburg Institute of Physics Energy Meteorology Group Detlev Heinemann Conditions for Offshore Wind Energy Use Detlev Heinemann ForWind Carl von Ossietzky Universität Oldenburg

More information

Wind Resource Assessment Østerild National Test Centre for Large Wind Turbines

Wind Resource Assessment Østerild National Test Centre for Large Wind Turbines Downloaded from orbit.dtu.dk on: Jan 21, 2018 Wind Resource Assessment Østerild National Test Centre for Large Wind Turbines Hansen, Brian Ohrbeck; Courtney, Michael; Mortensen, Niels Gylling Publication

More information

Stefan Emeis

Stefan Emeis The Physics of Wind Park Optimization Stefan Emeis stefan.emeis@kit.edu INSTITUTE OF METEOROLOGY AND CLIMATE RESEARCH, Photo: Vattenfall/C. Steiness KIT University of the State of Baden-Wuerttemberg and

More information

Analysis on Turbulent Flows using Large-eddy Simulation on the Seaside Complex Terrain

Analysis on Turbulent Flows using Large-eddy Simulation on the Seaside Complex Terrain Analysis on Turbulent Flows using Large-eddy Simulation on the Seaside Complex Terrain Takeshi Kamio, Makoto Iida, Chuichi Arakawa The University of Tokyo, Japan Outline Backgrounds and Purposes Complex

More information

Wind Project Siting & Resource Assessment

Wind Project Siting & Resource Assessment Wind Project Siting & Resource Assessment David DeLuca, Project Manager AWS Truewind, LLC 463 New Karner Road Albany, NY 12205 ddeluca@awstruewind.com www.awstruewind.com AWS Truewind - Overview Industry

More information

Outline. Wind Turbine Siting. Roughness. Wind Farm Design 4/7/2015

Outline. Wind Turbine Siting. Roughness. Wind Farm Design 4/7/2015 Wind Turbine Siting Andrew Kusiak 2139 Seamans Center Iowa City, Iowa 52242-1527 andrew-kusiak@uiowa.edu Tel: 319-335-5934 Fax: 319-335-5669 http://www.icaen.uiowa.edu/~ankusiak Terrain roughness Escarpments

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

Wind Flow Validation Summary

Wind Flow Validation Summary IBHS Research Center Validation of Wind Capabilities The Insurance Institute for Business & Home Safety (IBHS) Research Center full-scale test facility provides opportunities to simulate natural wind conditions

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

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

CFD and Experimental Studies on Wind Turbines in Complex Terrain by Improved Actuator Disk Method

CFD and Experimental Studies on Wind Turbines in Complex Terrain by Improved Actuator Disk Method Journal of Physics: Conference Series PAPER OPEN ACCESS CFD and Experimental Studies on Wind Turbines in Complex Terrain by Improved Actuator Disk Method To cite this article: Xin Liu et al 017 J. Phys.:

More information

A.J.C. Crespo, J.M. Domínguez, C. Altomare, A. Barreiro, M. Gómez-Gesteira

A.J.C. Crespo, J.M. Domínguez, C. Altomare, A. Barreiro, M. Gómez-Gesteira A.J.C. Crespo, J.M. Domínguez, C. Altomare, A. Barreiro, M. Gómez-Gesteira OUTLINE Oscillating Water Column - What OWC is? - Numerical modelling of OWC SPH functionalities - Wave generation (1 st order

More information

An Experimental Study on the Performances of Wind Turbines over Complex Terrain

An Experimental Study on the Performances of Wind Turbines over Complex Terrain 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 07-10 January 2013, Grapevine (Dallas/Ft. Worth Region), Texas AIAA 2013-0612 An Experimental Study on the

More information

WIND ARRAY PERFORMANCE EVALUATION MODEL FOR LARGE WIND FARMS AND WIND FARM LAYOUT OPTIMIZATION

WIND ARRAY PERFORMANCE EVALUATION MODEL FOR LARGE WIND FARMS AND WIND FARM LAYOUT OPTIMIZATION WIND ARRAY PERFORMANCE EVALUATION MODEL FOR LARGE WIND FARMS AND WIND FARM LAYOUT OPTIMIZATION by SIMENG LI Submitted in partial fulfillment of the requirements For the degree of Doctor of Philosophy Department

More information

Challenges in simulating coastal effects on an offshore wind farm

Challenges in simulating coastal effects on an offshore wind farm Journal of Physics: Conference Series PAPER OPEN ACCESS Challenges in simulating coastal effects on an offshore wind farm To cite this article: M. P. van der Laan et al 2017 J. Phys.: Conf. Ser. 854 012046

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

Predicting the Suction Gas Superheating in Reciprocating Compressors

Predicting the Suction Gas Superheating in Reciprocating Compressors Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2014 Predicting the Suction Gas Superheating in Reciprocating Compressors Jonatas Ferreira

More information

Validating CFD Simulation Results: Wind flow around a surface mounted cube in a turbulent channel flow

Validating CFD Simulation Results: Wind flow around a surface mounted cube in a turbulent channel flow Validating CFD Simulation Results: Wind flow around a surface mounted cube in a turbulent channel flow ISLAM ABOHELA 1, NEVEEN HAMZA 1, STEVEN DUDEK 1 1 School of Architecture, Planning and Landscape,

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

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

Wind tunnel test and numerical simulation of wind pressure on a high-rise building

Wind tunnel test and numerical simulation of wind pressure on a high-rise building Journal of Chongqing University (English Edition) [ISSN 1671-8224] Vol. 9 No. 1 March 2010 Article ID: 1671-8224(2010)01-0047-07 To cite this article: AL ZOUBI Feras, LI Zheng-liang, WEI Qi-ke, SUN Yi.

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

Higher Gas Turbine Operation Flexibility by Improved Diffuser Vanes of a Radial Compressor

Higher Gas Turbine Operation Flexibility by Improved Diffuser Vanes of a Radial Compressor Higher Gas Turbine Operation Flexibility by Improved Diffuser Vanes of a Radial Compressor STAR EUROPEAN CONFERENCE 2011 23 March 2011 Amsterdam, The Netherlands Dipl.-Ing. Anis Haj Ayed GmbH, Aachen,

More information

On- and Offshore Assessment of the ZephIR Wind-LiDAR

On- and Offshore Assessment of the ZephIR Wind-LiDAR On- and Offshore Assessment of the ZephIR Wind-LiDAR Detlef Kindler Kaiser-Wilhelm-Koog GmbH Andy Oldroyd Oldbaum Services Ltd. IEA R&D Task 11, Wind Energy 51 st Topical Expert Meeting on Remote Sensing

More information

Improving pedestrian wind comfort around a high rise building in an urban area: a case study by CFD simulations and on-site measurements

Improving pedestrian wind comfort around a high rise building in an urban area: a case study by CFD simulations and on-site measurements Improving pedestrian wind comfort around a high rise building in an urban area: a case study by CFD simulations and on-site measurements WD Janssen, B Blocken, and T van Hooff Unit Building Physics and

More information

INFLUENCE OF AERODYNAMIC MODEL FIDELITY ON ROTOR LOADS DURING FLOATING OFFSHORE WIND TURBINE MOTIONS

INFLUENCE OF AERODYNAMIC MODEL FIDELITY ON ROTOR LOADS DURING FLOATING OFFSHORE WIND TURBINE MOTIONS INFLUENCE OF AERODYNAMIC MODEL FIDELITY ON ROTOR LOADS DURING FLOATING OFFSHORE WIND TURBINE MOTIONS DENIS MATHA 1,2*, LEVIN KLEIN 3, DIMITRIOS BEKIROPOULOS 3, PO WEN CHENG 2 1 RAMBOLL WIND, GERMANY *

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

WIND DATA ANALYSIS AND WIND FLOW SIMULATION OVER LARGE AREAS

WIND DATA ANALYSIS AND WIND FLOW SIMULATION OVER LARGE AREAS Mathematical Modelling in Civil Engineering Vol. 10 No. 1 2014 Doi: 10.2478/mmce 2014 0005 WIND DATA ANALYSIS AND WIND FLOW SIMULATION OVER LARGE AREAS ANGEL TERZIEV- Lecturer, Assoc. Prof., PhD, Technical

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

Determination of the Design Load for Structural Safety Assessment against Gas Explosion in Offshore Topside

Determination of the Design Load for Structural Safety Assessment against Gas Explosion in Offshore Topside Determination of the Design Load for Structural Safety Assessment against Gas Explosion in Offshore Topside Migyeong Kim a, Gyusung Kim a, *, Jongjin Jung a and Wooseung Sim a a Advanced Technology Institute,

More information

International Journal of Technical Research and Applications e-issn: , Volume 4, Issue 3 (May-June, 2016), PP.

International Journal of Technical Research and Applications e-issn: ,  Volume 4, Issue 3 (May-June, 2016), PP. DESIGN AND ANALYSIS OF FEED CHECK VALVE AS CONTROL VALVE USING CFD SOFTWARE R.Nikhil M.Tech Student Industrial & Production Engineering National Institute of Engineering Mysuru, Karnataka, India -570008

More information

PHOENICS Predictions of Large Amplitude Internal Waves in the Ocean

PHOENICS Predictions of Large Amplitude Internal Waves in the Ocean PHOENICS Predictions of Large Amplitude Internal Waves in the Ocean Dr Bob Hornby & Mr Justin Small Underwater Sensors and Oceanography Department Defence Evaluation Research Agency, Winfrith Contents

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

Numerical Investigation of Inlet Distortion on an Axial Flow Compressor Rotor with Circumferential Groove Casing Treatment

Numerical Investigation of Inlet Distortion on an Axial Flow Compressor Rotor with Circumferential Groove Casing Treatment Chinese Journal of Aeronautics 21(2008) 496-505 Chinese Journal of Aeronautics www.elsevier.com/locate/cja Numerical Investigation of Inlet Distortion on an Axial Flow Compressor Rotor with Circumferential

More information

Power curves - use of spinner anemometry. Troels Friis Pedersen DTU Wind Energy Professor

Power curves - use of spinner anemometry. Troels Friis Pedersen DTU Wind Energy Professor Power curves - use of spinner anemometry Troels Friis Pedersen DTU Wind Energy Professor Spinner anemometry using the airflow over the spinner to measure wind speed, yaw misalignment and flow inclination

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

WindProspector TM Lockheed Martin Corporation

WindProspector TM Lockheed Martin Corporation WindProspector TM www.lockheedmartin.com/windprospector 2013 Lockheed Martin Corporation WindProspector Unparalleled Wind Resource Assessment Industry Challenge Wind resource assessment meteorologists

More information

Wind loading on cladding and glazed façades

Wind loading on cladding and glazed façades Wind loading on cladding and glazed façades Dr Mauro OVEREND Lecturer in Architectural Structures School of the Built Environment, University of Nottingham UK Kenneth ZAMMIT PhD Student School of the Built

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

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

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

Research and optimization of intake restrictor for Formula SAE car engine

Research and optimization of intake restrictor for Formula SAE car engine International Journal of Scientific and Research Publications, Volume 4, Issue 4, April 2014 1 Research and optimization of intake restrictor for Formula SAE car engine Pranav Anil Shinde Mechanical Engineering,

More information

3D Nacelle Mounted Lidar in Complex Terrain

3D Nacelle Mounted Lidar in Complex Terrain ENERGY 3D Nacelle Mounted Lidar in Complex Terrain PCWG Hamburg, Germany Paul Lawson 25.03.2015 1 DNV GL 125.03.2015 SAFER, SMARTER, GREENER Agenda Introduction and Project Background Lidar Specifications

More information

Adjustment of the k-ω SST turbulence model for prediction of airfoil characteristics near stall

Adjustment of the k-ω SST turbulence model for prediction of airfoil characteristics near stall Journal of Physics: Conference Series PAPER OPEN ACCESS Adjustment of the -ω SST turbulence model for prediction of airfoil characteristics near stall To cite this article: A A Matyusheno and A V Garbaru

More information

NUMERICAL AND EXPERIMENTAL INVESTIGATION OF THE FLOWFIELD IN A BLOWDOWN WIND TUNNEL

NUMERICAL AND EXPERIMENTAL INVESTIGATION OF THE FLOWFIELD IN A BLOWDOWN WIND TUNNEL ICAS 2002 CONGRESS NUERICAL AND EXPERIENTAL INVESTIGATION OF THE FLOWFIELD IN A BLOWDOWN WIND TUNNEL Ali Rebaine, ahmood Khalid, Cabot Broughton and Fred Ellis Institute for Aerospace Research, National

More information

Modelling of offshore wind turbine wakes with the wind farm program FLaP

Modelling of offshore wind turbine wakes with the wind farm program FLaP Paper submitted to Wind Energy Modelling of offshore wind turbine wakes with the wind farm program FLaP by Bernhard Lange University of Oldenburg, Oldenburg, Germany Hans-Peter Waldl University of Oldenburg,

More information

NUMERICAL SIMULATION OF THE FLOW AROUND A C-CLASS CATAMARAN Filipe Santos Carvalho

NUMERICAL SIMULATION OF THE FLOW AROUND A C-CLASS CATAMARAN Filipe Santos Carvalho NUMERICAL SIMULATION OF THE FLOW AROUND A C-CLASS CATAMARAN Filipe Santos Carvalho filipe.s.carvalho@tecnico.ulisboa.pt Instituto Superior Técnico, Universidade de Lisboa, Portugal December 2016 ABSTRACT

More information

INCORPORATING SEASONAL WIND RESOURCE AND ELECTRICITY PRICE DATA INTO WIND FARM MICROSITING

INCORPORATING SEASONAL WIND RESOURCE AND ELECTRICITY PRICE DATA INTO WIND FARM MICROSITING University of Massachusetts Amherst ScholarWorks@UMass Amherst Masters Theses May 2014 - current Dissertations and Theses 2017 INCORPORATING SEASONAL WIND RESOURCE AND ELECTRICITY PRICE DATA INTO WIND

More information

Criteria for wind farm noise: Lmax and Lden

Criteria for wind farm noise: Lmax and Lden Criteria for wind farm noise: Lmax and Lden F. Van Den Berg University of Groningen - Science & Society Group, Nijenborgh 4, 9747AG Groningen, Netherlands fvdberg@ggd.amsterdam.nl 4043 Wind turbine noise

More information

a high-rise (78 m) building in the city of Antwerp. CFD simulations are performed for the building with and without second-skin facade concept impleme

a high-rise (78 m) building in the city of Antwerp. CFD simulations are performed for the building with and without second-skin facade concept impleme The Seventh International Colloquium on Bluff Body Aerodynamics and Applications (BBAA7) Shanghai, China; September 2-6, 2012 CFD analysis of wind comfort on high-rise building balconies: validation and

More information

Increasing the Efficiency of Gilan Wind Power Plant in Iran by Optimization in Wind Turbines Arrangment in Wind Farm

Increasing the Efficiency of Gilan Wind Power Plant in Iran by Optimization in Wind Turbines Arrangment in Wind Farm Increasing the Efficiency of Gilan Wind ower lant in Iran by Optimization in Wind Turbines Arrangment in Wind Farm SHIVA SHAVANDI Operating power plants Section Mapna Group No. 31, Mirdamad. Sq. Tehran

More information

A COMPARATIVE FLOW ANALYSIS OF NACA 6409 AND NACA 4412 AEROFOIL

A COMPARATIVE FLOW ANALYSIS OF NACA 6409 AND NACA 4412 AEROFOIL A COMPARATIVE FLOW ANALYSIS OF NACA 6409 AND NACA 4412 AEROFOIL MD. Safayet Hossain 1, Muhammad Ferdous Raiyan 2, Mohammed Nasir Uddin Akanda 3, Nahed Hassan Jony 4 1 Department of Mechanical Engineering,

More information

Scales of Atmospheric Motion Scale Length Scale (m) Time Scale (sec) Systems/Importance Molecular (neglected)

Scales of Atmospheric Motion Scale Length Scale (m) Time Scale (sec) Systems/Importance Molecular (neglected) Supplement Wind, Fetch and Waves Scales of Atmospheric Motion Scale Length Scale (m) Time Scale (sec) Systems/Importance Molecular 10-7 - 10-2 10-1 (neglected) Coriolis not important Turbulent 10-2 10

More information

Basis of Structural Design

Basis of Structural Design Basis of Structural Design Course 10 Actions on structures: Wind loads Other loads Course notes are available for download at http://www.ct.upt.ro/users/aurelstratan/ Wind loading: normative references

More information

Available online at ScienceDirect. Procedia Engineering 161 (2016 )

Available online at  ScienceDirect. Procedia Engineering 161 (2016 ) Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 161 (216 ) 1845 1851 World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium 216, WMCAUS 216 Experimental

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

FINAL REPORT UPWIND 1A2 METROLOGY

FINAL REPORT UPWIND 1A2 METROLOGY FINAL REPORT UPWIND 1A METROLOGY P.J. Eecen, J.W. Wagenaar (ECN) N. Stefanatos (CRES) T.F. Pedersen, R. Wagner (Riso-DTU) K.S. Hansen (DTU-MEK) ECN-E--11-013 FEBRUARI 011 Acknowledgement/Preface The work

More information

Design of a small-scaled de Laval nozzle for IGLIS experiment

Design of a small-scaled de Laval nozzle for IGLIS experiment Design of a small-scaled de Laval nozzle for IGLIS experiment Evgeny Mogilevskiy, R. Ferrer, L. Gaffney, C. Granados, M. Huyse, Yu. Kudryavtsev, S. Raeder, P. Van Duppen Instituut voor Kern- en Stralingsfysika,

More information

Numerical simulation of topographic effects on wind flow fields over complex terrain

Numerical simulation of topographic effects on wind flow fields over complex terrain The Eighth Asia-Pacific Conference on Wind Engineering, December 10 14, 2013, Chennai, India Numerical simulation of topographic effects on wind flow fields over complex terrain B.W. Yan 1, Q.S. LI 2,

More information

Computational evaluation of pedestrian wind comfort and wind safety around a high-rise building in an urban area

Computational evaluation of pedestrian wind comfort and wind safety around a high-rise building in an urban area International Environmental Modelling and Software Society (iemss) 7th Intl. Congress on Env. Modelling and Software, San Diego, CA, USA, Daniel P. Ames, Nigel W.T. Quinn and Andrea E. Rizzoli (Eds.) http://www.iemss.org/society/index.php/iemss-2014-proceedings

More information

CFD Modelling of LPG dispersion

CFD Modelling of LPG dispersion CHAM Limited Pioneering CFD Software for Education & Industry CFD Modelling of LPG dispersion Demonstration example The following describes the numerical analysis of the dispersion of gas release from

More information

Wind tunnel tests of a non-typical stadium roof

Wind tunnel tests of a non-typical stadium roof Wind tunnel tests of a non-typical stadium roof G. Bosak 1, A. Flaga 1, R. Kłaput 1 and Ł. Flaga 1 1 Wind Engineering Laboratory, Cracow University of Technology, 31-864 Cracow, Poland. liwpk@windlab.pl

More information

WIND SHEAR, ROUGHNESS CLASSES AND TURBINE ENERGY PRODUCTION

WIND SHEAR, ROUGHNESS CLASSES AND TURBINE ENERGY PRODUCTION WIND SHEAR, ROUGHNESS CLASSES AND TURBINE ENERGY PRODUCTION M. Ragheb /18/17 INTRODUCTION At a height of about 1 kilometer the wind is barely affected by the surface of the Earth. In the lower atmospheric

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

Hollandse Kust (zuid) Wind resource assessment. 17 January 2017 Anthony Crockford

Hollandse Kust (zuid) Wind resource assessment. 17 January 2017 Anthony Crockford Hollandse Kust (zuid) Wind resource assessment 17 January 2017 Overview > Introduction > Wind measurements > Mesoscale model > Calculation of wind climate > Comparisons > Conclusions 2 ECOFYS WTTS 17/01/2017

More information

AN IMPROVED CROSS VENTILATION MODEL IN WINDY REGIONS

AN IMPROVED CROSS VENTILATION MODEL IN WINDY REGIONS AN IMPROVED CROSS VENTILATION MODEL IN WINDY REGIONS Ahmed A.Rizk, Professor Architectural Engineering Department, Tanta University, Egypt Yasser. A.Al- Samadony, Assistant Professor Mechanical Power Engineering

More information

WIND RESOURCE ASSESSMENT AND SITE SUITABILITY IN BANGLADESH USING WINDPRO AND WINDSIM

WIND RESOURCE ASSESSMENT AND SITE SUITABILITY IN BANGLADESH USING WINDPRO AND WINDSIM WIND RESOURCE ASSESSMENT AND SITE SUITABILITY IN BANGLADESH USING WINDPRO AND WINDSIM Dissertation in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE WITH A MAJOR IN ENERGY

More information

Fontes Renováveis Não-Convencionais. Parte II

Fontes Renováveis Não-Convencionais. Parte II Fontes Renováveis Não-Convencionais Parte II Prof. Antonio Simões Costa Prof. Tom Overbye, U. of Illinois Power in the Wind Consider the kinetic energy of a packet of air with mass m moving at velocity

More information

Large-eddy simulation of a turbulent buoyant helium plume

Large-eddy simulation of a turbulent buoyant helium plume Center for Turbulence Research Annual Research Briefs 8 45 Large-eddy simulation of a turbulent buoyant helium plume By G. Blanquart AND H. Pitsch. Motivation and objectives The numerical simulation of

More information

Scoping analysis of the potential yield of the Hollandse Kust (zuid) wind farm sites and the influence on the existing wind farms in the proximity

Scoping analysis of the potential yield of the Hollandse Kust (zuid) wind farm sites and the influence on the existing wind farms in the proximity Scoping analysis of the potential yield of the Hollandse Kust (zuid) wind farm sites and the influence on the existing wind farms in the proximity B.H. Bulder E.T.G. Bot A.J Marina August 2016 ECN-E--16-021

More information

Wind Energy Potential for Small-Scale Wind Concentrator Turbines

Wind Energy Potential for Small-Scale Wind Concentrator Turbines Wind Energy Potential for Small-Scale Wind Concentrator Turbines *Ashraf Amer ), Ahmed Hamza H. Ali ), Yehia ElMahgary ), Shinichi Ookawara ), Mahmoud Bady ) ), ), ), ) Department of Energy Resources and

More information

Wind Flow Modeling Software Comparison

Wind Flow Modeling Software Comparison Wind Flow Modeling Software Comparison John Vanden Bosche AWEA Wind Resource Assessment Workshop Minneapolis, MN September 30, 2009 Issues With Wind Flow Modeling Impractical to measure the wind at the

More information

Atmospheric air density analysis with Meteo- 40S wind monitoring system

Atmospheric air density analysis with Meteo- 40S wind monitoring system MATEC Web of Conferences, 7 (7) DOI:./ matecconf/77 IManE&E 7 Atmospheric air density analysis with Meteo- S wind monitoring system Dănuț Zahariea,*, and Dorin Emil Husaru Gheorghe Asachi Technical University

More information

Welke daalhouding is het meest aerodynamisch?

Welke daalhouding is het meest aerodynamisch? Welke daalhouding is het meest aerodynamisch? Bert Blocken a,b a Faculteit Bouwkunde, Technische Universiteit Eindhoven, Nederland b Departement Burgerlijke Bouwkunde, KU Leuven, België Welke daalhouding

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

Wind and wake models for IEC site assessment

Wind and wake models for IEC site assessment Downloaded from orbit.dtu.dk on: Nov 27, 217 Wind and wake models for IEC 614-1 site assessment Nielsen, Morten; Ejsing Jørgensen, Hans; Frandsen, Sten Tronæs Published in: EWEC 29 Proceedings online Publication

More information

Background Preliminary Review... 3

Background Preliminary Review... 3 January 23, 2012 Evaluation of Prop osed NRWC Wind Farm on Lo cal Micro climate: Preliminary Review & Work Plan For: Debbie Zimmerman Chief Executive Officer Grap e Growers of Ontario P.O. Box 100 Vineland

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

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

LARGE EDDY SIMULATION OF WIND TURBINES:

LARGE EDDY SIMULATION OF WIND TURBINES: POLITECNICO DI MILANO DEPARTMENT OF MECHANICAL ENGINEERING DOCTORAL PROGRAMME IN MECHANICAL ENGINEERING LARGE EDDY SIMULATION OF WIND TURBINES: INTERACTION WITH TURBULENT FLOW Doctoral Dissertation of:

More information

Developments of the offshore wind turbine wake model Fuga

Developments of the offshore wind turbine wake model Fuga Downloaded from orbit.dtu.dk on: Mar 06, 2018 Developments of the offshore wind turbine wake model Fuga Ott, Søren; Nielsen, Morten Publication date: 2014 Document Version Publisher's PDF, also known as

More information

A Quasi-Steady Wind Farm Control Model

A Quasi-Steady Wind Farm Control Model A Quasi-Steady Wind Farm Control Model A.J. Brand This paper has been presented at the EWEA 2011, Brussels, Belgium, 14-17 March 2011 ECN-M-11-032 MARCH 2011 2 ECN-M-11-032 A QUASI-STEADY WIND FARM CONTROL

More information