Title: RSM predictions of 3-D turbulent cold wall jets

Authors: T. Tornstrom, B. Moshfegh

Addresses: Department of Energy Technology, SP Swedish National Testing and Research Institute, Industrigatan 4, S-501 15 Boras, Sweden. ' Division of Energy Systems, Department of Mechanical Engineering, Linkoping University, Linkoping, Sweden

Abstract: This investigation explores the characteristics of cold three-dimensional (3-D) wall jets using Reynolds stress model (RSM) predictions and full-scale measurements. Two different versions of pressure-strain models, i.e., the quadratic and the linear pressure-strain models, have been applied to evaluate the behaviour of cold wall jets. Some deviations were detected between the quadratic and the linear pressure-strain models. It was found that the linear model predicted higher values on the lateral spreading rate and also higher values on the turbulent quantities. The quadratic model predicted values on the turbulent variables with closer agreement to the measurements than the linear model.

Keywords: mixing ventilation; buoyant wall jets; Coanda effect; CFD; Reynolds stress model; computational fluid dynamics; turbulent flows.

DOI: 10.1504/PCFD.2006.009488

Progress in Computational Fluid Dynamics, An International Journal, 2006 Vol.6 No.1/2/3, pp.110 - 121

Published online: 05 Apr 2006 *

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