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将原来在结构网格中提出的AUSM+ (AdvectionUpstreamSplittingMethod)格式 ,推广应用于二维非结构网格中 .利用格林 高斯公式对控制体内的变量进行线性重构 ,获得空间二阶精度 ,并采用Barth型限制器以抑制数值解的振荡 .为提高计算效率 ,采用了自适应多重网格法 .最后给出了NACA0 0 1 2翼型和平板激波反射的几个Euler方程的算例 ,并进行了分析比较 .
The original AUSM + (AdvectionUpstreamSplittingMethod) format proposed in structural grid is generalized and applied to two-dimensional unstructured grids.The Gaussians formula is used to linearly reconstruct the variables in the control body to obtain the second-order spatial accuracy, and the Barth type In order to improve the computational efficiency, an adaptive multigrid method was used.An example of several Euler equations reflected by the NACA0 0 1 2 airfoil and slab shock wave was given, analyse and compare .