| 拼接网格技术在复杂流场数值模拟中的应用研究 |
| |
| 引用本文： | 赵轲,高正红,黄江涛,李静. 拼接网格技术在复杂流场数值模拟中的应用研究[J]. 应用力学学报, 2011, 28(1) |
| |
| 作者姓名： | 赵轲 高正红 黄江涛 李静 |
| |
| 作者单位： | 西北工业大学,710072,西安 |
| |
| 摘 要： | 采用分区拼接网格技术,对 DLR-F6 机翼/机身胜架/短舱复杂组合体进行拼接网格分布.并采用 Menter SST 湍流模型,通过求解 Navier-Stokes 方程,对该组合体外流场以及发动机短舱内流场进行了一体化数值模拟,与相应风洞实验数据及分区搭接网格计算结果进行了比较与分析,验证了拼接网格技术的高效性与可靠性.同时通过分析对比不同插值方法的计算结果,研究了插值方法对拼接精度的影响;通过分析对比几组不同的拼接网格算例,总结出了 3 个拼接网格的基本实施准则.证明了拼接网格能够大幅度减小计算网格数目,可以更加灵活地分布网格节点,这样既可以缩短计算时间,又可以降低对内存的需求,提高了计算效率;同时无论整体的力系数,还是局部的压力分布流场细节都能够满足工程精度.
|
| 关 键 词： | 拼接网格 数值模拟 翼/身/架/舱组合体 |
Applications of the patched-grid technology in numerical simulation of flow field |
| |
| Zhao Ke,Gao Zhenghong,Huang Jiangtao,Li Jing. Applications of the patched-grid technology in numerical simulation of flow field[J]. Chinese Journal of Applied Mechanics, 2011, 28(1) |
| |
| Authors: | Zhao Ke Gao Zhenghong Huang Jiangtao Li Jing |
| |
| Affiliation: | Zhao Ke Gao Zhenghong Huang Jiangtao Li Jing(Northwestern Polytechnical University,710072,Xi'an,China) |
| |
| Abstract: | In this paper,the transonic flow of Wing/Body/Pylon/Nacelle configuration is simulated by solving Navier-Stokes equations based on structural patched-grid with Menter SST turbulence model.The result is compared with wind tunnel experimental data and the result computed by 1to1 multi-block structural grid.It is proved that patched-grid technology is reliable and efficient.At the same time,interpolation method which influences the simulation is also studied for selection of an appropriate method.At last three... |
| |
| Keywords: | patched-grid numerical simulation Wing/Body/Pylon/Nacelle configuration. |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
