Large Eddy Simulation of the Far Wake of a Wind Turbine

Large Eddy Simulation of the Far Wake of a Wind Turbine: The far wake of the NREL 5MW turbine is computed using Large Eddy Simulations. The near field aerodynamics of the wind turbine is computed using the Qblade LLT approach and imposed to the LES flow field using a body force technique. The flow field is then filtered using a Gaussian filter to remove small scale turbulence and only large-scale turbulence hazardous to aviation remains. This allows analyzing the flow for high rotational events and to create hazard maps that assist wind farm planning to avoid conflict with aviation. We acknowledge the support of XENON Systems () and CSIRO through an equipment grant including NVIDIA GPUs. We thank the National Computing Initiative (NCI) for additional computational resources.