Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines

P. L. Delafin; T. Nishino; L. Wang; A. Kolios; T. Bird

Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines

P. L. Delafin, T. Nishino, L. Wang, A. Kolios, T. Bird

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Abstract

Aerodynamic models widely used for Vertical Axis Wind Turbine design (Double Multiple Streamtube and Vortex models) are compared with more time consuming Computational Fluid Dynamics (CFD) simulations as well as with existing experimental data. Comparisons are made for the performance of the Sandia National Laboratories 17m Darrieus turbine, particularly its power, instantaneous torque and (only for the aerodynamic models and CFD) thrust force. The aim of the study is to assess the validity of each method. It is shown that the Double Multiple Streamtube model tends to overestimate torque amplitude and averaged power while RANS CFD gives fairly good predictions at all tip speed ratios tested. It is also shown that the vortex model provides intermediate results between the Double Multiple Streamtube model and CFD simulations.

Original language	English
Title of host publication	European Wind Energy Association Annual Conference and Exhibition 2015, EWEA 2015 - Scientific Proceedings
Publisher	European Wind Energy Association
ISBN (Electronic)	9782930670003
Publication status	Published - 2015
Externally published	Yes
Event	European Wind Energy Association Annual Conference and Exhibition 2015 - Paris, France Duration: 17 Nov 2015 → 20 Nov 2015

Conference

Conference	European Wind Energy Association Annual Conference and Exhibition 2015
Abbreviated title	EWEA 2015
Country/Territory	France
City	Paris
Period	17/11/15 → 20/11/15

Keywords

CFD
DMST
Instantaneous torque
Thrust
Vertical Axis Wind Turbine
Vortex model

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Management, Monitoring, Policy and Law

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

http://www.ewea.org/annual2015/conference/scientific-proceedings/

Cite this

Delafin, P. L., Nishino, T., Wang, L., Kolios, A., & Bird, T. (2015). Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines. In European Wind Energy Association Annual Conference and Exhibition 2015, EWEA 2015 - Scientific Proceedings European Wind Energy Association. http://www.ewea.org/annual2015/conference/scientific-proceedings/

Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines. / Delafin, P. L.; Nishino, T.; Wang, L.; Kolios, A.; Bird, T.

European Wind Energy Association Annual Conference and Exhibition 2015, EWEA 2015 - Scientific Proceedings. European Wind Energy Association, 2015.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Delafin, PL, Nishino, T, Wang, L, Kolios, A & Bird, T 2015, Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines. in European Wind Energy Association Annual Conference and Exhibition 2015, EWEA 2015 - Scientific Proceedings. European Wind Energy Association, European Wind Energy Association Annual Conference and Exhibition 2015 , Paris, France, 17/11/15. <http://www.ewea.org/annual2015/conference/scientific-proceedings/>

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abstract = "Aerodynamic models widely used for Vertical Axis Wind Turbine design (Double Multiple Streamtube and Vortex models) are compared with more time consuming Computational Fluid Dynamics (CFD) simulations as well as with existing experimental data. Comparisons are made for the performance of the Sandia National Laboratories 17m Darrieus turbine, particularly its power, instantaneous torque and (only for the aerodynamic models and CFD) thrust force. The aim of the study is to assess the validity of each method. It is shown that the Double Multiple Streamtube model tends to overestimate torque amplitude and averaged power while RANS CFD gives fairly good predictions at all tip speed ratios tested. It is also shown that the vortex model provides intermediate results between the Double Multiple Streamtube model and CFD simulations.",

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year = "2015",

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booktitle = "European Wind Energy Association Annual Conference and Exhibition 2015, EWEA 2015 - Scientific Proceedings",

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note = "European Wind Energy Association Annual Conference and Exhibition 2015 , EWEA 2015 ; Conference date: 17-11-2015 Through 20-11-2015",

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T1 - Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines

AU - Delafin, P. L.

AU - Nishino, T.

AU - Wang, L.

AU - Kolios, A.

AU - Bird, T.

PY - 2015

Y1 - 2015

N2 - Aerodynamic models widely used for Vertical Axis Wind Turbine design (Double Multiple Streamtube and Vortex models) are compared with more time consuming Computational Fluid Dynamics (CFD) simulations as well as with existing experimental data. Comparisons are made for the performance of the Sandia National Laboratories 17m Darrieus turbine, particularly its power, instantaneous torque and (only for the aerodynamic models and CFD) thrust force. The aim of the study is to assess the validity of each method. It is shown that the Double Multiple Streamtube model tends to overestimate torque amplitude and averaged power while RANS CFD gives fairly good predictions at all tip speed ratios tested. It is also shown that the vortex model provides intermediate results between the Double Multiple Streamtube model and CFD simulations.

AB - Aerodynamic models widely used for Vertical Axis Wind Turbine design (Double Multiple Streamtube and Vortex models) are compared with more time consuming Computational Fluid Dynamics (CFD) simulations as well as with existing experimental data. Comparisons are made for the performance of the Sandia National Laboratories 17m Darrieus turbine, particularly its power, instantaneous torque and (only for the aerodynamic models and CFD) thrust force. The aim of the study is to assess the validity of each method. It is shown that the Double Multiple Streamtube model tends to overestimate torque amplitude and averaged power while RANS CFD gives fairly good predictions at all tip speed ratios tested. It is also shown that the vortex model provides intermediate results between the Double Multiple Streamtube model and CFD simulations.

KW - CFD

KW - DMST

KW - Instantaneous torque

KW - Thrust

KW - Vertical Axis Wind Turbine

KW - Vortex model

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M3 - Conference proceeding

AN - SCOPUS:85029160957

BT - European Wind Energy Association Annual Conference and Exhibition 2015, EWEA 2015 - Scientific Proceedings

PB - European Wind Energy Association

T2 - European Wind Energy Association Annual Conference and Exhibition 2015

Y2 - 17 November 2015 through 20 November 2015

ER -

Comparison of RANS CFD and lower-order aerodynamic models for 3D vertical axis wind turbines

Abstract

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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