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| Investigation of 3D anisotropic self-adaptive tree mesh |
| Revised:December 14, 2004 |
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| DOI：10.7511/jslx20066148 |
| KeyWord:tree mesh,self-adaptation,anisotropy,lateral jet |
| TIAN Zheng-yu LI Hua LI Xiao-yu |
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| Abstract: |
| In this paper,a data structure of three dimensional tree mesh was built.And the finite volume method for structure mesh was introduced to tree mesh. Based on this structure,algorithms were built for anisotropic self-adaptive identifeation,cell mergence or split,mesh refinement,and other steps.And an algorithm for protective mesh refinement was developed.Finally,a lateral jet in 3D hypersonic flow was simulated numerically with anisotropic self-adaptive tree mesh.The result shows the structures of flow field clearly, and pressure coefficient distribution on wall makes a good agreemenal with experimental resultal.It is proved that the anisotropic self-adaptive tree mesh is suitable and effective with convenient mesh refinement and high resolution for flow field. |
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