STUDY ON SELF-SUSTAINED ATMOSPHERIC BOUNDARY LAYER CONSIDERING WIND VEERING WITH HEIGHT BASED ON RANS

Based on the fundamental equations, the incompressible, neutrally stratified, horizontally homogeneous, steady, and barotropic atmospheric boundary layer was simulated by the modifying parameters of a k-ε model. Through the three steps of pre-simulation, main simulation, and near-ground physical quantities adjustment, the method of self-sustaining for a wind field was discussed. The studies show that: by the modifying parameters of a k-ε model, the consistent simulation results with the measurement data are obtained. The physical quantities can be self-sustained well when the wind profiles obtained from the pre-simulations with a few meshes are applied to main simulations. More ideal self-sustained results can be achieved by the near-ground physical quantities adjustment with the Fixed Values operation in ANSYS Fluent.