SST k-omega Simulations of the Atmospheric Boundary Layer Including the Coriolis Effect*

For large-scale structures in the atmospheric boundary layer (ABL), the Coriolis effect and near-wall turbulence can meaningfully impact aerodynamic performance. For example, the Coriolis effect and blade boundary layers affect wind farm power production. RANS simulations of the ABL typically use the k-epsilon turbulence model, which has been modified to accurately capture the Coriolis effect but does not perform well near walls. The SST k-omega turbulence model accurately predicts near wall turbulence but not the Coriolis effect. We propose a modification to SST k-omega to better represent the Coriolis effect. We contrast how to modify k-epsilon and SST k-omega for the Coriolis effect. Finally, we compare k-epsilon and SST k-omega simulations of the ABL, including the Coriolis effect, with large eddy simulations and measurements.