Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session A14: Wind Energy: Modeling and Simulation
8:00 AM–9:57 AM,
Sunday, November 18, 2018
Georgia World Congress Center
Room: B301
Chair: Charles Meneveau, Johns Hopkins University
Abstract ID: BAPS.2018.DFD.A14.3
Abstract: A14.00003 : Turbulence generation in a large eddy simulation of a wind farm coupling meso- and micro scale*
8:26 AM–8:39 AM
Presenter:
Christian Santoni
(Univ of Texas, Dallas)
Authors:
Christian Santoni
(Univ of Texas, Dallas)
Edgardo J García-Cartagena
(Univ of Texas, Dallas)
Umberto Ciri
(Univ of Texas, Dallas)
Giacomo Valerio Iungo
(Univ of Texas, Dallas)
Stefano Leonardi
(Univ of Texas, Dallas)
Mesoscale circulation is of key importance for the study of wind farms in real conditions. Vertical mixing in Numerical Weather Prediction models is limited to resolutions on the order of 103 meters and, consequently, is unable to capture the intermediate scale turbulent structures impinging the wind turbine rotor and their wake interaction. To reconstruct these intermediate scales variability, we performed Large Eddy Simulations of a wind farm in north Texas, resolving both the mesoscale wind variations and the microscale by coupling WRF with our in-house LES code. Five one-way nested domains are solved with WRF to model the wind mesoscale wind conditions, retaining a resolution of 50 meters at the wind farm. An additional high-resolution nested domain is performed with our in-house LES code in the innermost domain in WRF from where we obtained the inlet boundary conditions. Numerical results are compared against SCADA, LiDAR and meteorological measurements. The variability of the inflow in the innermost domain is such to generate turbulence intensities in good agreement with SCADA.
*This work is supported by the NSF, WINDINSPIRE project (1243482) and IIP 1362033 (I/UCRC WindSTAR) and TACC.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.A14.3
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