三维Euler方程非结构自适应网格投影和光顺技术研究  

The Projection and Smooth Technique Research of Three-Dimensonal Unstructed Adaptived Mesh for Euler Equation

作　　者：邱征[1] 周磊[1] 朱培烨[1] 

机构地区：[1]中国航空计算技术研究所航空气动数值模拟重点实验室,陕西西安710068

出　　处：《航空计算技术》2006年第1期79-82,85,共5页Aeronautical Computing Technique

基　　金：航空基金(02A31001)

摘　　要：研究了三维Eu ler方程非结构自适应网格的投影和光顺技术。以ONERA M6机翼为计算模型,非结构网格为计算网格,守恒变量的范数为自适应加密准则,对采用一般自适应计算策略得到的网格和数值结果进行了分析,并发展了一种考虑网格投影和光顺的自适应计算策略。数值试验结果表明:通过对自适应所生成网格的投影与光顺,实现了自适应计算过程中的几何保真性,获得了相对光滑的压力分布曲线。The projection and smooth technique of unstructured adaptive grid for 3D Euler equation is researched in this paper. The unstructured adaptive refinement grid is based on ONERA M6 wing model, conservation variables＇ normalization criterion. By the analysis to gird and numerical results obtained from traditional adaptive strategy, we developed a kind of adaptive strategy considering grid project and smooth. Numerical results indicates that geometry reality is implemented and smooth pressure curve relatively is get in adaptive computing process by projection and smooth to grid generated by adaptive refinement.

关 键 词：EULER方程 非结构网格 自适应 投影 光顺 

分 类 号：O242[理学—计算数学]