Large Eddy Simulation of Wind Turbine Wakes. Detailed Comparisons of Two Codes Focusing on Effects of Numerics and Subgrid Modeling
Abstract
In this work we report on results from a detailed comparative numerical study from two Large Eddy Simulation (LES) codes using the Actuator Line Model (ALM). The study focuses on prediction of wind turbine wakes and their breakdown when subject to uniform inflow. Previous studies have shown relative insensitivity to subgrid modeling in the context of a finite-volume code. The present study uses the low dissipation pseudo-spectral LES code from Johns Hopkins University (LESGO) and the second-order, finite-volume OpenFOAMcode (SOWFA) from the National Renewable Energy Laboratory. When subject to uniform inflow, the loads on the blades are found to be unaffected by subgrid models or numerics, as expected. The turbulence in the wake and the location of transition to a turbulent state are affected by the subgrid-scale model and the numerics.
- Authors:
-
- Johns Hopkins Univ., Baltimore, MD (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1242036
- Report Number(s):
- NREL/JA-5000-64912
Journal ID: ISSN 1742-6588
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. Conference Series
- Additional Journal Information:
- Journal Volume: 625; Journal Issue: 1; Related Information: Journal of Physics: Conference Series; Journal ID: ISSN 1742-6588
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 17 WIND ENERGY; large eddy simulations; wind turbine wakes
Citation Formats
Martinez-Tossas, Luis A., Churchfield, Matthew J., and Meneveau, Charles. Large Eddy Simulation of Wind Turbine Wakes. Detailed Comparisons of Two Codes Focusing on Effects of Numerics and Subgrid Modeling. United States: N. p., 2015.
Web. doi:10.1088/1742-6596/625/1/012024.
Martinez-Tossas, Luis A., Churchfield, Matthew J., & Meneveau, Charles. Large Eddy Simulation of Wind Turbine Wakes. Detailed Comparisons of Two Codes Focusing on Effects of Numerics and Subgrid Modeling. United States. https://doi.org/10.1088/1742-6596/625/1/012024
Martinez-Tossas, Luis A., Churchfield, Matthew J., and Meneveau, Charles. Thu .
"Large Eddy Simulation of Wind Turbine Wakes. Detailed Comparisons of Two Codes Focusing on Effects of Numerics and Subgrid Modeling". United States. https://doi.org/10.1088/1742-6596/625/1/012024. https://www.osti.gov/servlets/purl/1242036.
@article{osti_1242036,
title = {Large Eddy Simulation of Wind Turbine Wakes. Detailed Comparisons of Two Codes Focusing on Effects of Numerics and Subgrid Modeling},
author = {Martinez-Tossas, Luis A. and Churchfield, Matthew J. and Meneveau, Charles},
abstractNote = {In this work we report on results from a detailed comparative numerical study from two Large Eddy Simulation (LES) codes using the Actuator Line Model (ALM). The study focuses on prediction of wind turbine wakes and their breakdown when subject to uniform inflow. Previous studies have shown relative insensitivity to subgrid modeling in the context of a finite-volume code. The present study uses the low dissipation pseudo-spectral LES code from Johns Hopkins University (LESGO) and the second-order, finite-volume OpenFOAMcode (SOWFA) from the National Renewable Energy Laboratory. When subject to uniform inflow, the loads on the blades are found to be unaffected by subgrid models or numerics, as expected. The turbulence in the wake and the location of transition to a turbulent state are affected by the subgrid-scale model and the numerics.},
doi = {10.1088/1742-6596/625/1/012024},
journal = {Journal of Physics. Conference Series},
number = 1,
volume = 625,
place = {United States},
year = {Thu Jun 18 00:00:00 EDT 2015},
month = {Thu Jun 18 00:00:00 EDT 2015}
}
Web of Science
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Works referencing / citing this record:
Wake structure in actuator disk models of wind turbines in yaw under uniform inflow conditions
journal, July 2016
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- Journal of Renewable and Sustainable Energy, Vol. 8, Issue 4
Comparison of four large-eddy simulation research codes and effects of model coefficient and inflow turbulence in actuator-line-based wind turbine modeling
journal, May 2018
- Martínez-Tossas, Luis A.; Churchfield, Matthew J.; Yilmaz, Ali Emre
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LES Study of Wake Meandering in Different Atmospheric Stabilities and Its Effects on Wind Turbine Aerodynamics
journal, December 2019
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Do wind turbines pose roll hazards to light aircraft?
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