An improved low-Reynolds-number κ-ε turbulence model for recirculating flows

H. H. Cho, R. J. Goldstein

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A revised form of the low-Reynolds-number κ-ε turbulence model is presented that aptly describes recirculating (separated and reattached) flows. The revised model is well suited for low to moderate Reynolds numbers. It is applied to two-dimensional channel flows, flow over a backward facing step, and flow over a forward facing step to calculate flow fields and surface heat or mass transfer rates. Results from the present model are in better agreement with experimental data than other low-Reynoldsnumber models. Asymmetric flow through an array of rectangular cylinders, as well as in a two-dimensional symmetric sudden expansion duct, is found numerically and supported by experimental results.

Original languageEnglish
Pages (from-to)1495-1508
Number of pages14
JournalInternational Journal of Heat and Mass Transfer
Volume37
Issue number10
DOIs
Publication statusPublished - 1994 Jul

Fingerprint

turbulence models
low Reynolds number
Turbulence models
Reynolds number
reattached flow
forward facing steps
backward facing steps
separated flow
channel flow
Channel flow
ducts
Ducts
mass transfer
Flow fields
flow distribution
Mass transfer
heat transfer
Heat transfer
expansion

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "A revised form of the low-Reynolds-number κ-ε turbulence model is presented that aptly describes recirculating (separated and reattached) flows. The revised model is well suited for low to moderate Reynolds numbers. It is applied to two-dimensional channel flows, flow over a backward facing step, and flow over a forward facing step to calculate flow fields and surface heat or mass transfer rates. Results from the present model are in better agreement with experimental data than other low-Reynoldsnumber models. Asymmetric flow through an array of rectangular cylinders, as well as in a two-dimensional symmetric sudden expansion duct, is found numerically and supported by experimental results.",
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An improved low-Reynolds-number κ-ε turbulence model for recirculating flows. / Cho, H. H.; Goldstein, R. J.

In: International Journal of Heat and Mass Transfer, Vol. 37, No. 10, 07.1994, p. 1495-1508.

Research output: Contribution to journalArticle

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AB - A revised form of the low-Reynolds-number κ-ε turbulence model is presented that aptly describes recirculating (separated and reattached) flows. The revised model is well suited for low to moderate Reynolds numbers. It is applied to two-dimensional channel flows, flow over a backward facing step, and flow over a forward facing step to calculate flow fields and surface heat or mass transfer rates. Results from the present model are in better agreement with experimental data than other low-Reynoldsnumber models. Asymmetric flow through an array of rectangular cylinders, as well as in a two-dimensional symmetric sudden expansion duct, is found numerically and supported by experimental results.

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