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 (US) |
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Pages (from-to) | 1495-1508 |
Number of pages | 14 |
Journal | International Journal of Heat and Mass Transfer |
Volume | 37 |
Issue number | 10 |
DOIs | |
State | Published - Jul 1994 |
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.