| 直升机旋翼机身发动机耦合流场数值模拟 |
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| 引用本文： | 胡利,曹义华,赵明. 直升机旋翼机身发动机耦合流场数值模拟[J]. 航空动力学报, 2008, 23(10): 1882-1887 |
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| 作者姓名： | 胡利 曹义华 赵明 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院, 北京 100191 |
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| 摘 要： | 运用计算流体力学(CFD)数值工具研究旋翼机身发动机空气动力干扰.通过生成多块贴体网格,运用有限体积方法直接求解了不可压N-S方程.分析了某直升机低速前飞时的流场性质.首先对孤立机身周围粘性流场进行数值模拟,然后运用作用盘模型分析了旋翼机身空气动力干扰对机身压力分布等方面的影响;最后运用简单的发动机模型分析了发动机进出口对直升机流场的影响.
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| 关 键 词： | 数值模拟 旋翼机身 作用盘 发动机进出口 前飞 |
| 收稿时间： | 2007-09-10 |
| 修稿时间： | 2008-04-28 |
Numerical simulation of helicopter rotor-fuselage-engine aerodynamic interactions |
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| HU Li,CAO Yi-hua and ZHAO Ming. Numerical simulation of helicopter rotor-fuselage-engine aerodynamic interactions[J]. Journal of Aerospace Power, 2008, 23(10): 1882-1887 |
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| Authors: | HU Li CAO Yi-hua ZHAO Ming |
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| Affiliation: | School of Aeronautical Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | The rotor-fuselage-engine aerodynamic interactions were studied using computational fluid dynamics numerical tools.The body-fitted structural grid was generated through multi-block grid technique.The finite volume method was adopted and incompressible Navier-Stokes equation was solved.The flow field and performance of the helicopter in forward flight were analyzed.Firstly,the accuracy of viscous simulation was investigated for the isolated fuselage configuration.Then,the rotor-fuselage aerodynamic interacti... |
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| Keywords: | numerical simulation rotor-fuselage-engine actuator disk engine inlet and outlet forward flight |
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