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Curvature Wall Boundary Conditions for DGM Solving 2D Euler Equations

HAO Hai-bing;LI Qiang-wei;LIANG Yi-hua;Xi'an Aeronautics Computing Technique Research Institute,AVIC;Northwest Branch,China Eastern Airlines;  
The main purpose of this paper is to develop high- order discontinuous Galerkin method( DGM) suitable for the numerical solutions of the Euler equations on unstructured grids. In this paper, flow was modeled by around a physical rather than computational geometry and curvature wall boundary conditions were implemented instead of traditional reflecting boundary conditions. The Numerical results indicate that significant improvement in quality of the solution is achieved. Besides,highly accurate solutions can be obtained using high- order DGM even on very coarse grids.
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