Heat Transfer to Laminar Flow Across a Flat Plate With a Nonsteady Surface Temperature

[+] Author and Article Information
R. D. Cess

Heat Transfer and Flow Section, Mechanics Department, Westinghouse Research Laboratories, Pittsburgh, Pa.

J. Heat Transfer 83(3), 274-279 (Aug 01, 1961) (6 pages) doi:10.1115/1.3682256 History: Received April 14, 1960


Forced convection heat transfer is considered for laminar flow across a flat plate whose surface temperature varies with time. The case analyzed first is that of a step change in surface temperature, and series solutions are obtained which apply for both small and large time. These series results are used to construct an approximate solution which describes the entire time-history of the nonsteady heat-transfer process, and it is found that the results agree closely with an envelope composed of pure transient conduction and steady-state convection solutions. The analysis is then generalized to include any prescribed variation of surface temperature with time.

Copyright © 1961 by ASME
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