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RESEARCH PAPERS

Prediction of Confined Three-Dimensional Impinging Flows With Various Turbulence Models

[+] Author and Article Information
T. M. Liou, Y. H. Hwang, L. Chen

Department of Power Mechanical Engineering, National Tsing Hua University, Hsin-Chu, Taiwan 30043

J. Fluids Eng 114(2), 220-230 (Jun 01, 1992) (11 pages) doi:10.1115/1.2910019 History: Received June 08, 1989; Online May 23, 2008

Abstract

This paper deals with three-dimensional, turbulent, confined impinging flows. Various turbulence models are examined with reported laser-Doppler velocimetry data and flow-visualization photographs. The turbulence models considered are the k–ε, k–ε with the Richardson number correction for swirling and recirculating flows (k–ε w/scm), algebraic Reynolds stress (k–ε–A), and modified k–kl models. The k–ε and k–ε–A models are found to be superior to the k–ε w/scm and modified k–kl models in predicting the main flow characteristics. The k–ε–A model provides a better quantitative agreement with the experimental data than can be achieved with the k–ε model, however, less computational effort is spent with the k–ε model than with the k–ε–A model. Also, the effect of the inlet velocity profile on the characteristics of the confined impinging flows is addressed in this study.

Copyright © 1992 by The American Society of Mechanical Engineers
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