Turbulence Modeling Experience in Ducts with Forced Convective Flow

Masoud Rokni, Bengt Sundén

Research output: Contribution to journalJournal articleResearchpeer-review


This study presents a general computational method for calculating turbulent quantities in arbitrary three-dimensional ducts. Four different turbulence models for the turbulent Reynolds stresses are compared, namely, a standard K-epsilon model, a nonlinear K- epsilon model, an explicit algebraic stress model (EASM), and a full Reynolds stress model (RSM). The turbulent heat fluxes are modeled by the simple eddy diffusivity concept, the generalized gradient diffusion hypothesis, and the wealth alpha earnings time methods. A finite volume technique for nonstaggered grids combined with the SIMPLEC algorithm is applied. A modified strongly implicit procedure is implemented for solving the equations. The van Leer scheme is applied for the convective terms except for the K and epsilon equations, where the hybrid scheme is used.
Original languageEnglish
JournalNumerical Heat Transfer Part A: Applications
Issue number6
Pages (from-to)629 - 654
Publication statusPublished - 1999
Externally publishedYes


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