Numerical Simulation of Separated Flows in Channels

作     者：Petr Louda Jaromír Príhoda Petr Sváek Karel Kozel 

作者机构：Czech Technical University in Prague Fac. of Mechanical Engineering Karlovo nám. 13 CZ-121 35 Praha 2 Institute of Thermomechanics AS CR v.v.i. Dolejkova 5 CZ-182 00 Praha 8 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2012年第21卷第2期

页      面：145-153页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by Grant Number 103/09/0977 of Czech Science Foundation Research Plans of MSMT No. 6840770010 and No. AV0Z207 60514 

主　　题：数值模拟 通道 分离流 雷诺应力模型 涡粘性模型 有限元方法 有限体积法 扩大截面 

摘      要：The work deals with numerical modelling of turbulent flows in channels with an expansion of the cross-section where flow separation and reattachment occur. The performance of several eddy viscosity models and an explicit algebraic Reynolds stress model (EARSM) is studied. The used test cases are flows in channels with various backward facing steps where the step is perpendicular or inclined and the top wall is parallel or deflected. Furthermore, a channel with the circular ramp is considered. The numerical solution is achieved by the finite volume method or by the finite element method. The results of both numerical approaches are compared.