旋翼的流场呈现很强的非定常现象.目前,对旋翼定常流场的计算已经基本成熟,非定常流场的计算仍在探索之中.本文基于有限体积法的思想,利用较成熟的商用软件NUMECA/IGG生成计算所需的网格.对N-S方程进行离散,选用Baldwin-Lomax湍流模型,Dual-Time时间推进格式模拟了旋翼的非定常流场.计算的结果与文献给出的实验结果符合得较好.
参考文献
[1] | 王同庆,李琪娜,彭锋.亚音主旋翼的噪声预测和声隐身分析[J].工程热物理学报,2005(02):216-220. |
[2] | F X Caradonna;C Tung .Experimental and Analytical Studies of a Model Helicopter Rotor in Hover[R].NASA TM 81232,1981. |
[3] | R K Agarwal;J E Deese;McDonnell.An Euler Solver for Calculating the Flowfield of a Helicopter Rotor in Hover and Forward Flight[A].Honolulu Hawaii,1987 |
[4] | H Pomin;S Wagner .Navier-Stokes Analysis of Helicopter Rotor Aerodynamics in Hover and Forward Flight[R].AIAA Paper 87-1427 |
[5] | A Jameson.Time Dependent Calculations Using MultiGrid,with Applications to Unsteady Flows Past Airfoils and Wings[A].Honolulu HI,1991 |
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