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| 复杂外形网格生成技术及应用 | |
| 引用本文： | 张正科.复杂外形网格生成技术及应用[J].北京航空航天大学学报,1998,24(6):642-645. |
| 作者姓名： | 张正科 |
| 作者单位： | 1. 北京航空航天大学 宇航学院; 2. 北京航空航天大学 飞行器设计与应用力学系 |
| 基金项目： | 国家自然科学基金(19502002)和博士后科学基金资助项目 |
| 摘 要： | 以某型双立尾战斗机为例,给出了实际复杂型号飞行器结构网格生成的一种分块方案及实现过程,用一种矢性三次多项式插值的方法生成相邻块公共交界面的网格,用Hilgenstock方法修正源项,求解椭圆型方程生成块内空间网格,使网格线与边界面夹角、与边界面间距控制为期望的值.在所生成的双立尾战斗机分块结构网格中求解Euler方程,获得了合理的全机气动力系数、翼面压力分布和绕流图谱结果. |
| 关 键 词： | 网格 战斗机 计算流体力学 分块网格 Euler方程 |
| 收稿时间： | 1998-05-18 |
Grid Generation Technique of Complex Configurations and its Applications |
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| Zhang Zhengke,Zhu Ziqiang,Zhuang Fenggan.Grid Generation Technique of Complex Configurations and its Applications[J].Journal of Beijing University of Aeronautics and Astronautics,1998,24(6):642-645. | |
| Authors: | Zhang Zhengke Zhu Ziqiang Zhuang Fenggan |
| Institution: | 1. Beijing University of Aeronautics and Astronautics,Dept.of Flight Vehicle Design and Applied Mechanics; 2. Beijing University of Aeronautics and Astronautics,Dept.of Flight Vehicle Design and Applied Mechanics |
| Abstract: | A multiblock structured grid generation system for complex practical aircraft is presented and applied in the grid generation of a twin tail fighter. A vectorized polynomial of degree 3 is used to generate grid on the interface of adjacent blocks. The volume grid in each block is generated by solving elliptic partial differential equations with source terms corrected by 3 d Hilgenstock method to control the grid line angle (orthogonality) to boundaries and first layer grid point spacings off boundaries to expected values. Euler equations are solved in the generated grid of the twin tail fighter and the computed results of the aerodynamic coefficients of the complete aircraft, the wing surface pressure and the vortical flow field are reasonable. |
| Keywords: | grids fighter computational fluid mechanics multiblock grid Euler equations |
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