Details
| Original language | English |
|---|---|
| Title of host publication | Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy |
| Publisher | American Society of Mechanical Engineers(ASME) |
| ISBN (electronic) | 9780791849873 |
| Publication status | Published - 20 Sept 2016 |
| Event | ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, GT 2016 - Seoul, Korea, Republic of Duration: 13 Jun 2016 → 17 Jun 2016 |
Publication series
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Volume | 9 |
Abstract
Computational Fluid Dynamics (CFD) simulations are becoming increasingly important to enhancing the understanding of rotor aerodynamics and improving blade design for wind turbines. The present study addresses the effect of turbulence treatment on the CFD-based performance assessment of wind turbines by successively increasing the modeling depth. A process for 2D and 3D CFD simulations is described, which is based on the geometry of the NREL 5MW reference wind turbine. It is shown that the main differences between fully turbulent computations and transition model simulations with and without additional curvature correction model occur in the inner blade region, and increase in 3D flow regimes. Literature and the findings of the present study lead to the conclusion that simulations with the transition model in conjunction with the curvature correction model should be preferred. The resulting power output of this setup is also in good agreement with the Blade Element Momentum (BEM) calculation.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
Cite this
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Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy. American Society of Mechanical Engineers(ASME), 2016. (Proceedings of the ASME Turbo Expo; Vol. 9).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Effect of Turbulence and Transition Models on the CFD-Based Performance Prediction of Wind Turbines
AU - Ernst, Benedikt
AU - Seume, Joerg R.
AU - Herbst, Florian
PY - 2016/9/20
Y1 - 2016/9/20
N2 - Computational Fluid Dynamics (CFD) simulations are becoming increasingly important to enhancing the understanding of rotor aerodynamics and improving blade design for wind turbines. The present study addresses the effect of turbulence treatment on the CFD-based performance assessment of wind turbines by successively increasing the modeling depth. A process for 2D and 3D CFD simulations is described, which is based on the geometry of the NREL 5MW reference wind turbine. It is shown that the main differences between fully turbulent computations and transition model simulations with and without additional curvature correction model occur in the inner blade region, and increase in 3D flow regimes. Literature and the findings of the present study lead to the conclusion that simulations with the transition model in conjunction with the curvature correction model should be preferred. The resulting power output of this setup is also in good agreement with the Blade Element Momentum (BEM) calculation.
AB - Computational Fluid Dynamics (CFD) simulations are becoming increasingly important to enhancing the understanding of rotor aerodynamics and improving blade design for wind turbines. The present study addresses the effect of turbulence treatment on the CFD-based performance assessment of wind turbines by successively increasing the modeling depth. A process for 2D and 3D CFD simulations is described, which is based on the geometry of the NREL 5MW reference wind turbine. It is shown that the main differences between fully turbulent computations and transition model simulations with and without additional curvature correction model occur in the inner blade region, and increase in 3D flow regimes. Literature and the findings of the present study lead to the conclusion that simulations with the transition model in conjunction with the curvature correction model should be preferred. The resulting power output of this setup is also in good agreement with the Blade Element Momentum (BEM) calculation.
UR - http://www.scopus.com/inward/record.url?scp=84991340839&partnerID=8YFLogxK
U2 - 10.1115/gt2016-56728
DO - 10.1115/gt2016-56728
M3 - Conference contribution
AN - SCOPUS:84991340839
T3 - Proceedings of the ASME Turbo Expo
BT - Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, GT 2016
Y2 - 13 June 2016 through 17 June 2016
ER -