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Investigations of Farm-to-Farm Interactions and Blockage Effects from AWAKEN Using Large-Scale Numerical Simulations

Laros, James H.; Blaylock, Myra L.; Herges, Thomas H.; deVelder, Nathaniel d.; Brown, Kenneth B.; Sakievich, Philip S.; Houck, Daniel; Maniaci, David C.; Kaul, Collen; Rai, Raj; Hamilton, Nicholas; Rybchuk, Alex; Scott, Ryan; Thedin, Regis; Cheung, Lawrence C.

A large-scale numerical computation of five wind farms was performed as a part of the American WAKE experimeNt (AWAKEN). This high-fidelity computation used the ExaWind/AMR-Wind LES solver to simulate a 100 km × 100 km domain containing 541 turbines under unstable atmospheric conditions matching previous measurements. The turbines were represented by Joukowski and OpenFAST coupled actuator disk models. Results of this qualitative comparison illustrate the interactions of wind farms with large-scale ABL structures in the flow, as well as the extent of downstream wake penetration in the flow and blockage effects around wind farms.