【摘要】 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。更多还原

【Abstract】 The flow field of the helicopter rotor is characterized by unsteady phenomena.At present, the calculation of steady flow of helicopter rotor is very mature.The calculation of unsteady flow of helicopter rotor is still in the stage of development.The computational grid was got by the NU- MECA/IGG which bases on the finite volume method.The control formulation is N-S formulation. The turbulence model is Baldwin-Lomax mode.The Dual-Time marching method was used to im- prove the rapidity of convergence.The results agreed well with the experimental results which was form reference article.更多还原