| 用非结构直角网格和欧拉方程计算飞机绕流 |
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| 引用本文： | 黄明恪. 用非结构直角网格和欧拉方程计算飞机绕流[J]. 航空学报, 2002, 23(6): 564-567 |
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| 作者姓名： | 黄明恪 |
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| 作者单位： | 南京航空航天大学,空气动力学系,江苏,南京,210016 |
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| 摘 要： | 采用八叉树结构 ,生成复杂外形绕流计算的非结构直角网格。物面附近用投影方法 ,使网格贴体。并将Jameson的有限体积法推广用于这种网格的欧拉方程计算。对歼击机模型的绕流计算表明 ,网格生成的机时花费很少 ,总体质量好 ,因而欧拉方程解算的收敛质量也好。
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| 关 键 词： | 直角网格 欧拉方程 有限体积法 |
| 文章编号： | 1000-6893(2002)06-0564-04 |
| 修稿时间： | 2001-10-18 |
COMPUTATION OF THE FLOW PAST AIRCRAFT USING UNSTRUCTURED CARTESIAN GRID AND EULER EQUATIONS |
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| HUANG Ming ke. COMPUTATION OF THE FLOW PAST AIRCRAFT USING UNSTRUCTURED CARTESIAN GRID AND EULER EQUATIONS[J]. Acta Aeronautica et Astronautica Sinica, 2002, 23(6): 564-567 |
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| Authors: | HUANG Ming ke |
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| Affiliation: | Dept. of Aerodynamics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Unstructured Cartesian grid for complex geometries is generated based on Octree data structure. The projection method is applied near the body surface to make the grid bodyfitted. Jameson's finite volume method is extended to such a grid to solve the Euler equations. The computation of the flow past a fighter model shows a reduced CPU time for the grid generation, and a good convergence level reached for the flow computation due to the quality of the computational grids. |
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| Keywords: | Cartesian grid Euler equations finite volume method |
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