Revisiting the Reynolds-averaged energy equation in near-wall turbulence models

Keh-Chin Chang, Ming Juin Shyu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

It is sometimes reported in the heat transfer studies of gaseous media using the near-wall turbulence models that their fully-developed Nu predictions deviate from the experimental correlations. This work approaches the rigorous formulation of the Reynolds-averaged equation in terms of temperature from a fundamental basis, in order to highlight the possible errors due to the usual overapproximation made for the Reynolds-averaged energy equation. It is suggested that Eq. (18) which is one of the rigorous forms of the Reynolds-averaged equation and free of the unknown correlation of the pressure diffusion term is suitable for the analysis of turbulent convective heat transfer in gaseous media.

Original languageEnglish
Pages (from-to)665-676
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume43
Issue number5
DOIs
Publication statusPublished - 1999 Dec 24

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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