计算物理 ›› 2006, Vol. 23 ›› Issue (3): 361-365.
• 研究论文 • 上一篇 下一篇
田正雨, 李桦, 潘沙
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作者简介:
TIAN Zheng-yu, LI Hua, PAN Sha
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摘要: 建立了基于分区结构网格的三维贴体叉树形网格的数据结构,并阐述了在此基础上进行自适应分裂/合并判别方法.为节省网格量和保证流场结构捕捉质量,提出对自适应程度进行区域性控制,以及对流场结构进行"保护"性预加密的优化方式.通过应用该网格对三维复杂超声速流场算例的计算,证明该方法对网格加密控制方便,对流场结构分辨率高.
关键词: 自适应, 叉树网格, 各向异性, 三维激波/激波干扰
Abstract: Based on an initial structural mesh, a data structure for a 3-D body-fitted tree mesh was built. Simplified algorithms were developed for anisotropic self-adaptive split and mergence. In order to reduce the number of mesh cells we set restrictive self-adaptive levels for different zones divided in advance. A method of protective mesh split for structures in flow field was developed. Numerical simulations with different complex supersonic flow patterns were shown. It is proved that the anisotropic self-adaptive tree mesh is effective with less mesh cells and convenient for mesh refinement. High resolution for Now field is obtained.
Key words: self-adaptation, tree mesh, anisotropy, 3-D shock/shock interaction
中图分类号:
V211.3
田正雨, 李桦, 潘沙. 流场自适应叉树网格数值模拟三维复杂超声速流场[J]. 计算物理, 2006, 23(3): 361-365.
TIAN Zheng-yu, LI Hua, PAN Sha. Numerical Investigation of Complex 3-D Supersonic Flows with a Self-Adaptive Tree Mesh[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2006, 23(3): 361-365.
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