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International Heat Transfer Conference 5

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

ESTABLISHED LAMINAR AND TURBULENT CHANNEL FLOW OF A RADIATING MOLECULAR GAS

A. Balakrishnan
School of Engineering, UCLA, Los Angeles, California, U.S.A.

D. K. Edwards
School of Engineering, UCLA, Los Angeles, California, U.S.A.

DOI: 10.1615/IHTC5.3430
pages 93-97

Abstract

The equation of conservation of energy fixing the temperature profile in a hydrodynamically established channel flow is formulated exactly for the case of a nongray gas and solved numerically for the Nusselt number pertaining to the thermally established region. In the case of laminar flow, comparison is made to a previously-derived integral solution and a rederived one of more convenient form. In the case of turbulent flow, comparison is made to a previous solution for volume heating. The volume heating results are approximately 8 per cent greater than the exact results for established channel flow.

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