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On the calculation of turbulent heat transport downstream from an abrupt pipe expansionA numerical study of flow and heat transfer in the separated flow region produced by an abrupt pipe explosion is reported, with emphasis on the region in the immediate vicinity of the wall where turbulent transport gives way to molecular conduction and diffusion. The analysis is based on a modified TEACH-2E program with the standard k-epsilon model of turbulence. Predictions of the experimental data of Zemanick and Dougall (1970) for a diameter ratio of 0.54 show generally encouraging agreement with experiment. At a diameter ratio of 0.43 different trends are discernable between measurement and calculation, though this appears to be due to effects unconnected with the wall region studied here.
Document ID
19800064867
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chieng, C. C.
(California Univ. Davis, CA, United States)
Launder, B. E.
(California, University Davis, Calif., United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1980
Publication Information
Publication: Numerical Heat Transfer
Volume: 3
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
80A49037
Funding Number(s)
CONTRACT_GRANT: NSG-2256
Distribution Limits
Public
Copyright
Other

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