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RESEARCH PAPERS

Prediction of Three-Dimensional Developing Turbulent Flow in a Square Duct With an Anisotropic Low-Reynolds-Number k-ε Model

[+] Author and Article Information
Hyon Kook Myong

Air Conditioning and Environmental Control Lab., Korea Institute of Science and Technology, Seoul 130-650, Korea

Toshio Kobayashi

Institute of Industrial Science, The University of Tokyo, Tokyo 106, Japan

J. Fluids Eng 113(4), 608-615 (Dec 01, 1991) (8 pages) doi:10.1115/1.2926523 History: Received December 05, 1990; Online May 23, 2008

Abstract

Three-dimensional developing turbulent flow in a square duct involving turbulence-driven secondary motion is numerically predicted with an anisotropic low-Reynolds-number k-ε turbulence model. Special attention has been given to both regions close to the wall and the corner, which are known to influence the characteristics of secondary flow a great deal. Hence, the no-slip boundary condition at the wall is directly used in place of the common wall function approach. The resulting set of equations simplified only by the boundary layer assumption are first compared with previous algebraic stress models, and solved with a forward marching numerical procedure for three-dimensional shear layers. Typical predicted quantities such as mean axial and secondary velocities, friction coefficients, turbulent kinetic energy, and Reynolds shear stress are compared with available experimental data. These results indicate that the present anisotropic k-ε turbulence model performs quite well for this complex flow field.

Copyright © 1991 by The American Society of Mechanical Engineers
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