| 基于动量源方法的直升机旋翼/机身流场数值模拟 |
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| 引用本文： | 王博,招启军,徐国华.基于动量源方法的直升机旋翼/机身流场数值模拟[J].直升机技术,2008(3):25-30. |
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| 作者姓名： | 王博 招启军 徐国华 |
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| 作者单位： | 南京航空航天大学直升机旋翼动力学国家级重点实验室,南京,210016 |
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| 摘 要： | 建立了一套基于动量源方法的直升机旋翼/机身流场数值模拟方法.将旋翼对流场的作用以动量源项的形式代表,建立了一个包含动量源项的CFD方法.针对直升机旋翼/机身流场的特点以及动量源方法对网格系统的要求,采用了一种混合网格生成方法.通过结合旋翼桨叶的运动方式、几何特征及气动特性,建立一个包含动量源项的N-S方程的旋翼流场计算方法和迭代流程,并采用该方法进行直升机旋翼、机身和旋翼/机身下洗流场的数值模拟,得到了关于旋翼/机身干扰流场的一些有意义的结论.
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| 关 键 词： | 旋翼 机身 动量源方法 流场 计算流体力学 |
Numerical Simulations for the Flowfield of Helicopter Rotor/Fuselage Based upon Momentum-Source Method |
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| Authors: | WANG Bo ZHAO Qi-jun XU Guo-hua |
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| Institution: | Wang Bo,Zhao Qi-jun,Xu Guo-hua(National Key Laboratory of Rotorcraft Aeromechanics,Nanjing University of Aeronautics , Astronautics,Nanjing,210016) |
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| Abstract: | Base upon a momentum-source method,a numerical simulation method has been developed to calculate the helicopter rotor/fuselage flowfield.The momentum-source term is used to describe the effect of rotor on its flowfield.According to the characteristics of rotor/fuselage flowfield and requirements of momentum-source method,a hybrid mesh generation approach is developed.In the present method,on the basis of the known movement,geometric and aerodynamic characteristics on blade section,a scheme containing moment... |
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| Keywords: | rotor fuselage momentum-source method flowfield CFD |
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