Comparison between EVM and RSM turbulence models in predicting flow and heat transfer in rib-roughened channels

作者：Ahmad Khalaf Sleiti, Jayanta Kapat · 发表于：Journal of Turbulence · 年份：2006 · DOI：10.1080/14685240500499343 · 被引用次数：32 · 研究领域：Heat Transfer Mechanisms、Fluid Dynamics and Turbulent Flows、Heat transfer and supercritical fluids

A 3D analysis of two-equation eddy viscosity (EVMs) and Reynolds stress (RSM) turbulence models and their application to solve flow and heat transfer in rotating rib-roughened internal cooling channels is the main focus of this study. The flow in these channels is affected by ribs, rotation, buoyancy, bends and boundary conditions. The EVMs considered are the standard k–ϵ model of Launder and Spalding [1 Launder, B. E. and Spalding, D. B. 1972. Lectures in Mathematical Models of Turbulence, London, , England: Academic. [Google Scholar]], the renormalization group k–ϵ model of Yakhot and Orszag [2 Yakhot, V. and Orszag, S. A. 1986. Renormalization group analysis of turbulence: I. Basic theory. Journal of Scientific Computing, 1: 1–51. [CSA] [Google Scholar]], the realizable k–ϵ model of Shih et al. [3 Shih, T.-S., Liou, W. W., Shabbir, A., Yang, Z. and Zhu, J. 1995. A new k-e eddy viscosity model for high Reynolds number turbulent flows. Computers and Fluids, 24: 227–238. [CSA] [Google Scholar]], the standard k–ω model of Wilcox [4 Wilcox, D. C. 1998. Turbulence Modeling for CFD, 2nd, La Canada, California: DCW Industries, Inc.. [Google Scholar]] and the shear–stress transport (SST) k–ω model of Menter [5 Menter, F. R. 1994. Two-equation eddy-viscosity turbulence models for engineering applications. AIAA Journal, 32: 1598–1605. [CSA] [Google Scholar]]. The viscosity-affected near-wall region is resolved by enhanced near-wall treatment using combined two-layer model with enhanc...