非结构网格上二维欧拉方程的多重网格解  

Multigrid Solution for the 2 D Euler Equations on Unstructured Meshes

作　　者：刘星[1] 卞恩荣[1] 童谷生[2] 

机构地区：[1]南京航空航天大学飞机系,江苏南京210016 [2]华东交通大学土木工程学院,江西南昌330013

出　　处：《华东交通大学学报》1999年第3期1-6,共6页Journal of East China Jiaotong University

摘　　要：介绍了在非结构三角形网格上对欧拉方程进行有限体积离散的一种方法⒚通过运用一系列彼此独立的粗细不同的非结构网格，即多重网格算法。A finite volume discretization of the Euler equations on unstructured triangular meshes is presented. Convergence has been accelerated by an unstructured multigrid algorithm which operates on a sequence of completely unrelated unstructured coarse and fine meshes. Subcritical and supercritical flows are computed about multi element airfoil configurations in two dimensions. The computation results are compared both with an exact potential flow solution for a low Mach number case and with experimental data for a case with small viscous effects. And it shows that the multigrid algorithm is very efficiently.

关 键 词：非结构网格 多重网格 中心格式 欧拉方程 跨音速 

分 类 号：O354.2[理学—流体力学] V211.3[理学—力学]