Application of the Nonlinear SST Turbulence Model for Simulation of Anisotropic Flows

The application of the nonlinear SST turbulence model (SST NL) for calculation flows with anisotropy is considered. results following validation test cases are presented: flow in a square duct, corner separation at wing-body junction (NASA Juncture Flow) and transonic wing CRM). has been found to significantly improve quality simulating anisotropic as compared models based on Boussinesq hypothesis. It shown that prevents false thereby achieves qualitative improvement simulation results. case revealed an upstream displacement shock wave upper side which leads underestimation lift force when using NL model. In all tests considered, required increase computational cost most 5 % conventional