A nonlinear low-Reynolds-number k-ε model for turbulent separated and reattaching flows - II. Thermal field computations

Gwang Hoon Rhee, Hyung Jin Sung

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27 Scopus citations

Abstract

As a sequence of the prior low-Reynolds-number k-ε model of Park and Sung, an improved version of the heat transfer model is developed for turbulent separated and reattaching flows. The equations of the temperature variance (k0) and its dissipation rate (ε0) are solved, together with the equations of k and ε. In the present model, the near-wall limiting behavior close to the wall and the nonequilibrium effect away from the wall are incorporated. The validation of the model is applied to the turbulent flow over a backward-facing step and the flow over a flat plate. The predictions of the present model are cross-checked with the existing measurements and DNS data. The model performance is shown to be generally satisfactory.

Original languageEnglish
Pages (from-to)3465-3474
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume39
Issue number16
DOIs
StatePublished - Nov 1996

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