方管湍流二次流的数值模拟  

Numerical Study of Turbulence-driven Secondary Flow in a Square Duct

作　　者：王发民[1] 赵烈[1] 卞荫贵[1] 

机构地区：[1]中国科学院力学研究所,北京100080

出　　处：《水动力学研究与进展（A辑）》1993年第1期73-80,共8页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金

摘　　要：本文采用新的向量势做法计算了方截面直管内的湍流流动。讨论了流场特征并导出了不同区域的简化方程。计算结果跟实验相符,实际模拟了平均量和湍流量的主要特征。In this paper, the turbulent flow in a straight duct of squase cross section has been computed using a new vector-potential formulation. The flowfield characteristics are discussed, and the corresponding simplified equations suitable for different regions are developed. The present results are in good agreement with available expermental data. The main features of the mean-flow and the turbulence quantities are simulated realistically.

关 键 词：二次流 湍流模型 数值模拟 

分 类 号：TV131.21[水利工程—水力学及河流动力学]