| 二维欧拉方程的非结构网格自适应方法 |
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| 引用本文： | 刘星,黄礼耀.二维欧拉方程的非结构网格自适应方法[J].洪都科技,1999(1):18-25. |
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| 作者姓名： | 刘星 黄礼耀 |
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| 作者单位： | [1]南京航空航天大学,南京 [2]洪都航空集团650所,南京 |
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| 摘 要： | 给出提高二维欧拉定常解质量的非结构网格自适应方法。网格的生成采用Ｅｅｌａｕｎｅｙ方法，流场的算法为节点型有限体积法，能量的计算采用Ｖａｎｌｅｅｒ格式，自适应采用网格的增加和删减。对流场特性的探测采用密度物质导数的绝对值。最后计算了Ｎａｃａ００１２翼型的跨音速绕流，结果证明自适应效果很好。
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| 关 键 词： | 二维欧拉方程 流场 非结构网格生成 自适应 有限体积法 Euler方程 |
An Adaptative Algorithm for 2-D Euler Equations on Unstructured Meshes |
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| Liu Xing, Bian Enrong.An Adaptative Algorithm for 2-D Euler Equations on Unstructured Meshes[J].Hongdu Science and Technology,1999(1):18-25. |
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| Authors: | Liu Xing Bian Enrong |
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| Abstract: | An adqptive algorithm for 2-D Euler equations on unstructured meshes is presented. The grid is generated by Delauney method- A nodal finite volume method is used in the now calculation. The scheme for the nux calculation is vare Leer. The adaptation for the flow computations is mesh enrichment and coarsening. The detection for the flow feature adopts the absolute value of substantial derivative of den sity. At last an example of the transonic flow past NACAoo12 airfoil is presented. It proves that the adaptive effects are quite good. |
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| Keywords: | Unstructured grid Finite volume method Euler equations |
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