| 直升机旋翼机身流动特性数值模拟 |
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| 引用本文： | 胡利,赵明,马超,曹义华.直升机旋翼机身流动特性数值模拟[J].直升机技术,2008(3):41-46. |
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| 作者姓名： | 胡利 赵明 马超 曹义华 |
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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,北京,100083 |
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| 摘 要： | 运用CFD数值工具研究旋翼机身发动机空气动力干扰.通过生成多块贴体结构网格,运用有限体积方法直接求解了不可压N-S方程.首先分析ROBIN机型的旋翼机身耦合的流场特性,然后再分析了MI-171V5直升机低速前飞时的流场性质.对两种机型首先进行孤立机身周围粘性流场数值模拟,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,与实验数据对比相吻合.
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| 关 键 词： | 旋翼机身 作用盘 前飞 数值模拟 计算流体力学 |
Numerical Simulation of Helicopter Rotor-fuselage-engine Aerodynamic Interactions |
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| Authors: | HU Li ZHAO Ming MA Chao CAO Yi-hua |
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| Institution: | HU Li,ZHAO Ming,MA Chao,CAO Yi-hua(School of Aeronautical Science , Engineering,Beijing University of Aeronautics , Astronautics,Beijing,100083) |
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| Abstract: | This paper presents a study of the rotor-fuselage-engine aerodynamic interactions using CFD numerical tools.The body-fitted structural grid is generated through multi-block grid technique.The finite volume method is adopted and incompressible N-S(Navier-Stokes)equation is solved.The flow field and performance of ROBIN and MI-171V5 helicopters are analyzed.First,the accuracy of viscous simulation is investigated for isolated fuselage of ROBIN and MI-171V5 helicopters.Then,the rotor-fuselage aerodynamic inter... |
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| Keywords: | rotor-fuselage actuator disk forward flight numerical simulation CFD |
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