Turbulence models and their applications to the prediction of internal flows: A review
type: Item
instance of: scholarly article
title: Turbulence models and their applications to the prediction of internal flows: A review
zbMATH Open document ID: 0616.76070
DOI: 10.1016/S0045-7930(87)80003-8
author: M. Nallasamy
published in: Computers and Fluids
publication date: 1987-01-01T00:00:00Z
review text: The paper presents a brief account of various turbulence models employed in the computation of turbulent flows, and evaluates the application of these models to internal flows by examining the predictions of various turbulence models in selected important flow configurations. The main conclusions of this analysis are: (a) The k-epsilon model is used in a majority of all the two-dimensional flow calculations reported in the literature. (b) Modified forms of the k-\(\epsilon\) model improve the performance for flows with streamline curvature and heat transfer. (c) For flows with swirl, the k-\(\epsilon\) model performs rather poorly; the algebraic stress model performs better in this case. (d) For flows with regions of secondary flow (noncircular duct flows), the algebraic stress model performs fairly well. Two important factors in the numerical solution of the model equations, namely false diffusion and inlet boundary conditions, are discussed. The existence of countergradient transport and its implications in turbulence modeling are examined. Finally, some recommendations for improving the model performance are made. The need for detailed experimental data in flows with strong curvature is emphasized.
Mathematics Subject Classification ID: 76Fxx
Mathematics Subject Classification ID: 76-02
Mathematics Subject Classification ID: 80A20
zbMATH DE Number: 3999550
zbMATH Keywords: turbulence models
zbMATH Keywords: turbulent flows
zbMATH Keywords: internal flows
zbMATH Keywords: k-epsilon model
zbMATH Keywords: two- dimensional flow calculations
zbMATH Keywords: streamline curvature
zbMATH Keywords: heat transfer
zbMATH Keywords: algebraic stress model
zbMATH Keywords: secondary flow
zbMATH Keywords: noncircular duct flows
zbMATH Keywords: numerical solution
zbMATH Keywords: false diffusion
zbMATH Keywords: inlet boundary conditions
zbMATH Keywords: existence of countergradient transport
zbMATH Keywords: turbulence modeling
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 3999550