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

H. H. Cho; R. J. Goldstein

doi:10.1016/0017-9310(94)90151-1

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

H. H. Cho, R. J. Goldstein

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1495-1508
Number of pages	14
Journal	International Journal of Heat and Mass Transfer
Volume	37
Issue number	10
DOIs	https://doi.org/10.1016/0017-9310(94)90151-1
Publication status	Published - 1994 Jul

Bibliographical note

Funding Information:
Acknowledgemenfs-Support for this research came from the Air Force Office of Scientific Research, the Engineering Research Program of the Department of Energy, and the Minnesota Supercomputer Institute.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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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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AU - Goldstein, R. J.

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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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