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High-order discontinuous Galerkin method for solving Euler equations
Pages: 691-695
Year: Issue:  5
Journal: Journal of Southwest University for Nationalities(Natrual Science Edition)

Keyword:  间断Galerkin方法Roe迎风型数值通量TVD Runge-Kutta方法Moment限制器;
Abstract: 在二维结构网格上建立了一种求解欧拉方程的快速稳健高阶间断Galerkin方法.采用Roe迎风型数值通重,时间步采用TVD Runge-Kutta方法推进;构造了适合间断Galerkin方法的二维二阶Moment限制器,并采用当地时间步长加速收敛.数值模拟了绕NACA0012翼型流场,数值结果表明了Moment限制器有效地抑制了数值振荡,该方法具有优良的加速收敛效果和较好地激波捕捉能力.
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