High-Order Discontinuous Galerkin Methods for Turbulent High-lift Flows
نویسندگان
چکیده
In this work a robust discontinuous Galerkin (DG) solver for turbulent high-lift aerodynamic flows using the turbulence model of Spalart and Allmaras (SA) is developed. The application of DG discretizations to turbulent RANS flows is one of the most pressing issues facing high-order methods on unstructured grids. The issue is the result of non-smooth behavior of the turbulence model equation, which often causes solver failure for high-order discretizations. Herein a modification to the turbulence model of Spalart and Allmaras is implemented within a DG-based unstructured CFD solver for the RANS equations and utilized to compute high-lift aerodynamic flows.
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