CUED Publications database

Predictive techniques for turbulent oscillatory flows

Tucker, PG (1999) Predictive techniques for turbulent oscillatory flows. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, 364-1. pp. 271-283. ISSN 0272-5673

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Abstract

The prediction of turbulent oscillatory flow at around transitional Reynolds numbers is considered for an idealized electronics system. To assess the accuracy of turbulence models, comparison is made with measurements. A stochastic procedure is used to recover instantaneous velocity time traces from predictions. This procedure enables more direct comparison with turbulence intensity measurements which have not been filtered to remove the oscillatory flow component. Normal wall distances, required in some turbulence models, are evaluated using a modified Poisson equation based technique. A range of zero, one and two equation turbulence models are tested, including zonal and a non-linear eddy viscosity models. The non-linear and zonal models showed potential for accuracy improvements.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:20
Last Modified: 08 Dec 2014 02:29
DOI: