UNSPECIFIED (2000) Prediction of turbulent oscillatory flows in complex systems. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 33 (6). pp. 869-895. ISSN 0271-2091

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Abstract

The economical prediction of a turbulent oscillatory isothermal flow at transitional Reynolds numbers is considered for an enclosure representative of an idealized electronics system. To assess the accuracy of numerical models, comparison is made with measurements. Normal wall distances, required in some turbulence models, are evaluated using a modified Poisson equation-based technique. Solutions of the Poisson and fluid flow equations are accelerated using multi-level schemes, giving valuable time-savings. The Poisson equation-based wall distance technique is shown to be effective. Zero- to two-equation turbulence techniques are tested, including zonal and non-linear eddy viscosity models. Of the nine models tested, the zonal models showed greatest potential. Copyright (C) 2000 John Wiley & Sons, Ltd.

Item Type:	Journal Article
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software Q Science > QA Mathematics T Technology > TJ Mechanical engineering and machinery Q Science > QC Physics
Journal or Publication Title:	INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS
Publisher:	JOHN WILEY & SONS LTD
ISSN:	0271-2091
Date:	30 July 2000
Volume:	33
Number:	6
Number of Pages:	27
Page Range:	pp. 869-895
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/13186

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