颗粒在非各向同性均匀湍流中的扩散(英文)  

Particle Dispersion in Anisotropic Homogeneous Turbulence

作　　者：袁亚雄[1] Crowe C.T. 

机构地区：[1]华东工学院,江苏南京210014 [2]华盛顿州立大学

出　　处：《空气动力学学报》1992年第2期201-209,共9页Acta Aerodynamica Sinica

摘　　要：本文是颗粒在非各向同性均匀湍流场中扩散的数值研究结果。通过采用一组预置协方差的随机数模拟雷诺应力来表示随机的湍流流场。本文报导了湍流强度、速度松弛时间和雷诺应力对颗粒扩散的影响。A numerical study of particle dispersion in anisotropic homogeneous turbulent flows is reported. The stochastic turbulent field is represented by a set of random numbers with a pre- set covariance simulating the Reynolds stress in a turbulent flow. The effects of turbulence intensity, aerodynamic response time and Reynolds stress on the particle dispersion are presented.

关 键 词：湍流 两相流 蒙特卡罗方法 

分 类 号：O357.5[理学—流体力学]