Model of the turbulent transport of Reynolds stress (Study on the transport equation of triple velocity moment)

Hidenori Hara, Shinnosuke Obi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An algebraic model of the turbulent transport of Reynolds stress is proposed, based on an examination of the budget of the transport equation for the third-moment of fluctuating velocity. Combined with a basic version of the second-moment closure, the new model is applied to the calculation of a two-dimensional free mixing layer. The results show a slight modification of the conventional gradient transport model for the turbulent diffusion, and yield a better agreement with experimental results in terms of the amplitude of the third-moment. The inclusion of a simple model for the pressure diffusion term indicates the possibility of further improvement of the turbulent transfer process in free flows.

Original languageEnglish
Pages (from-to)2986-2993
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume62
Issue number600
Publication statusPublished - 1996 Aug
Externally publishedYes

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Reynolds stress
moments
turbulent diffusion
free flow
budgets
closures
examination
inclusions
gradients

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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