| 机翼-机身-挂架-短舱复杂流场数值模拟 |
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| 引用本文： | 高正红,黄江涛.机翼-机身-挂架-短舱复杂流场数值模拟[J].应用力学学报,2009,26(4). |
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| 作者姓名： | 高正红 黄江涛 |
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| 作者单位： | 西北工业大学,710072,西安 |
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| 摘 要： | 本文采用分区搭接网格技术,对机翼/机身/挂架/短舱复杂组合体进行网格分布,通过分析计算网格对结果的影响,探讨了网格的划分.基于Roe的近似黎曼解的方法,采用S-A湍流模型,通过求解N-S方程,对该组合体外流场/发动机短舱内流场进行一体化数值模拟,与相应风洞实验数据进行了比较与分析,取得了与实验数据较为吻合的结果.与无发动机短舱的组合体的气动特性进行比较,分析了短舱对翼身组合体的气动干扰.
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| 关 键 词： | 气动干扰 一体化数值模拟 Roe近似黎曼解 翼/身/架/舱组合体 虚拟网格 |
Numerical Complex Flowfield Simulation of Wing/body/Pylon/Nacelle Configuration |
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| Gao Zhenghong,Huang Jiangtao.Numerical Complex Flowfield Simulation of Wing/body/Pylon/Nacelle Configuration[J].Chinese Journal of Applied Mechanics,2009,26(4). |
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| Authors: | Gao Zhenghong Huang Jiangtao |
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| Abstract: | One-to-one multi-block structural grid is generated. Analyzing the effect of the grid quality acts on numerical simulation accuracy, the grid generation strategy is investigated. Taking transonic flow of Wing/body/ Pylon/Nacelle configuration as a typical numerical example, Navier-Stokes equation is solved based on Roe spatial scheme, and SA turbulence model is adopted. The computational result is compared with wind tunnel experimental data, and shows that the CFD platform is reliable. Discussing the aerodynamic characteristic of DLR-F6 Wing/body configuration, the phenomenon of aerodynamic interference between nacelle and Wing/body configuration is investigated. A platform for aircraft aerodynamic particular design is provided. |
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| Keywords: | aerodynamic interference integrative numerical simulation Roe scheme Wing/body/Pylon/Nacelle configuration technique of dummy grid |
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