摘要
采用运动嵌套网格和求解Navier-Stokes方程的方法,数值模拟了前飞状态的旋翼流场,结果同试验数据吻合得很好;在此基础上,分别对单双桨叶旋翼在两种桨距情况下的前飞流场,进行了对比计算,模拟了各种因素对旋翼桨叶间气动干扰作用的影响,并对其机理进行了探讨,得到一些与工程实际吻合的现象和结论。
A numerical method with moving chimera grids is developed to simulate the unsteady flow around a helicopter rotor in forward flight by Navier-Stokes equations,and the numerical results agree with the experiments.The flow fields aroud one-bladed rotor and two-bladed rotor in forward flight are respectively simulated in two kinds of attack angle.The aerodynamic performance and interaction are compared and analyzed.Some valuable phenomena and conclusions are pertinent to the engineering practice.
出处
《应用力学学报》
CAS
CSCD
北大核心
2009年第1期36-39,共4页
Chinese Journal of Applied Mechanics
