| GENERATION AND APPLICATION OF UNSTRUCTURED ADAPTIVE MESHES WITH MOVING BOUNDARIES |
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| 作者姓名： | Geng J. H. |
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| 作者单位： | Department of Information，Nanjing University of Science & Technology Nanjing 210094，P.R.China |
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| 基金项目： | the Natural Science Foundation of China(No.5 99760 13 and1983 2 0 3 0 ) |
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| 摘 要： | INTRODUCTIONMany engineering applications require thenumerical prediction of strongly unsteady flowsinteracting with moving bodies.A case in pointis that the detailed calculation of sphere motionsin an unsteady field induced by blast waves is akey issue to determine the drag force exerting up-on the sphere by the surrounding gas and,inturn,to reveal the mechanism of unsteady effectson the drag coefficient.To cope with such pro-blems,one should simulate unsteady flows withmoving boundary co…
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GENERATION AND APPLICATION OF UNSTRUCTURED ADAPTIVE MESHES WITH MOVING BOUNDARIES |
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| Geng J. H..GENERATION AND APPLICATION OF UNSTRUCTURED ADAPTIVE MESHES WITH MOVING BOUNDARIES[J].Transactions of Nanjing University of Aeronautics & Astronautics,2001,18(Z1). |
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| Authors: | Geng JH Wu HZ |
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| Institution: | 1. Department of Power Engineering,Nanjing University of Science & Technology Nanjing 210094,P. R. China
2. Department of Information, Nanjing University of Science & Technology Nanjing 210094,P. R. China |
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| Abstract: | This paper presents a method to generate unstructured adaptive meshes with moving boundaries and its application to CFD. Delaunay triangulation criterion in conjunction with the automatic point creation is used to generate 2 D and 3 D unstructured grids. A local grid regeneration method is proposed to cope with moving boundaries. Numerical examples include the interactions of shock waves with movable bodies and the movement of a projectile within a ram accelerator, illustrating an efficient and robust mesh generation method developed. |
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| Keywords: | Delaunay triangulation adaptive unstructured grid moving boundary |
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