旋转三维紊流流场的数值分析

Numerical analysis of rotating 3-D turbulent flow field

应用SIMPLEST方法和标准k-e 紊流模型对旋转直通道内的流场进行计算,给出了该旋转流场的速度矢量图及压力场,并将测量截面上的主流和二次流速度分布与实验值作了对比,结果吻合较好,对叶轮机械内的旋转流场的数值模拟有重要意义.

The field of 3D turbulent flow through a rotating duct is simulated based on Navier-Stokes equations, SIMPLEST method and k-e model, and the relative velocity vectors and static pressure distribution are carried out. The calculation results are in good agreement with the available experimental data. The formation of secondary flow in a rotating duct is well studied. The study provides the basis for numerical simulation of the rotating flow in impellers.