| 基于动态嵌套网格的飞行器外挂物投放的数值模拟 |
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| 引用本文： | 李孝伟,范绪箕.基于动态嵌套网格的飞行器外挂物投放的数值模拟[J].空气动力学学报,2004,22(1):114-117. |
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| 作者姓名： | 李孝伟 范绪箕 |
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| 作者单位： | 1. 上海大学,上海市应用数学和力学研究所,上海,200072
2. 上海交通大学1011研究室,上海,200030 |
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| 基金项目： | 上海市高等学校科学技术发展基金资助，上海市重点建设学科项目资助. |
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| 摘 要： | 运用Euler方程和六自由度动力学方程数值模拟了外挂物投放的气动特性与运行姿态和轨迹。为了模拟外挂物从飞行器分离后的绕流特性和相对运动，采用了动态嵌套网格技术，并发展了一种洞边界建立和外边点的插值单元搜寻蛇行法，提高了计算效率。通过算例，证明了本文方法的有效性和合理性。
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| 关 键 词： | 飞行器 外挂物投放 动态嵌套网格 数值模拟 Euler方程 气动特性 |
| 文章编号： | 0258-1825(2004)01-0114-04 |
Simulation of the release of store based on the moving chimera grid technique |
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| LI Xiao-wei,FAN Xu-ji.Simulation of the release of store based on the moving chimera grid technique[J].Acta Aerodynamica Sinica,2004,22(1):114-117. |
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| Authors: | LI Xiao-wei FAN Xu-ji |
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| Institution: | LI Xiao-wei~1,FAN Xu-ji~2 |
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| Abstract: | The moving Chimera grid technique is developed to simulate running trajectories of stores separated from aircraft. Because the position of every grid, the artificial boundaries and the interpolation cells for boundary points are changed from one time step to next time step, it is necessary to use snaking-like method in the moving Chimera grid technique to improve the efficiency of building artificial boundaries and searching interpolation cells for boundary points. The running trajectories of stores separated from aircraft are computed using the moving Chimera grid, Euler equations and six degrees of freedom dynamic equations, and the results obtained are reasonable. |
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| Keywords: | moving chimera grid release of store Euler equations snaking-like method |
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