Improvement of a low-Reynolds-number second moment closure and its application to rotating turbulent channel flows

Jong Keun Shin, Young Don Choi

Research output: Contribution to journalArticle

Abstract

A low-Reynolds-number second moment closure is improved with the aid of DNS data and applied to turbulent channel flows with a spanwise rotation. Shima's pressure strain model is refined and a multiple source model is introduced for the exact ε equation. Computational results for the turbulent plane channel flows rotating in orthogonal mode are compared with the DNS, LES and experimental data. The present second moment closure achieves a level of agreement with DNS data similar to those for the non-rotating flow cases. In particular, it yields the improved performance in predicting the distributions of ε in the near wall sublayer.

Original languageEnglish
Pages (from-to)63-71
Number of pages9
JournalJSME International Journal, Series B: Fluids and Thermal Engineering
Volume44
Issue number1
DOIs
Publication statusPublished - 2001 Feb 1

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Keywords

  • Coriolis force
  • Rotating flow
  • Rotation number
  • Second moment turbulence closure

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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