Title

Comparison Between Evm And Rsm Turbulence Models In Predicting Flow And Heat Transfer In Rib-Roughened Channels

Abstract

A 3-D analysis of two-equation eddy-viscosity (EVMs) and Reynolds stress (RSM) turbulence models and their application to solving flow and heat transfer in rotating rib-roughened internal cooling channels is the main focus of this study. The flow in theses channels is affected by ribs, rotation, buoyancy, bends and boundary conditions. The EVMs considered are: The standard k - ε Model: of Launder and Spalding Launder and Spalding [1], the Renormalization Group k-ε model: Yakhot and Orszag [2], the Realizable k-ε model Shur et al. [3], the standard k-ω Model, Wilcox Wilcox [4], and the Shear-Stress Transport (SST) k-ω Model, Menter [5]. The viscosity affected near wall region is resolved by enhanced near wall treatment using combined two-layer model with enhanced wall functions. The results for both stationary and rotating channels showed the advantages of Reynolds Stress Model (RSM), Gibson and Launder [6], Launder [7], Launder [8] in predicting the flow field and heat transfer compared to the isotropic EVMs that need corrections to account for streamline curvature, buoyancy and rotation. Copyright © 2004 by ASME.

Publication Date

1-1-2004

Publication Title

Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004

Volume

2 A

Number of Pages

531-542

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/ht-fed2004-56250

Socpus ID

21544460161 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/21544460161

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