AN IMPROVED K-EPSILON MODEL FOR BOUNDARY-LAYER FLOWS

被引：143

作者：

NAGANO, Y

TAGAWA, M

机构：

[1] Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 01期

关键词：

D O I：

10.1115/1.2909365

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An Improvement of the k-ε model has been made in conjunction with an accurate prediction of the near-wall limiting behavior of turbulence and the final period of the decay law of free turbulence. The present improved k-ε model has been extended to predict the effects of adverse pressure gradients on shear layers, which most previously proposed models failed to do correctly. The proposed model was tested by application to a turbulent pipe flow, a flat plate boundary layer, a relaminarizing flow, and a diffuser flow with a strong adverse pressure gradient. Agreement with the experiments was generally very satisfactory. © 1990 by ASME.

引用

页码：33 / 39

页数：7