Transient Heat Transfer for Turbulent Flow Over a Flat Plate of Appreciable Thermal Capacity and Containing Time-Dependent Heat Source

[+] Author and Article Information
M. Soliman

Preliminary Design Department, AiResearch Manufacturing Co., Los Angeles, Calif.

H. A. Johnson

University of California, Berkeley, Calif.

J. Heat Transfer 89(4), 362-370 (Nov 01, 1967) (9 pages) doi:10.1115/1.3614398 History: Received May 27, 1966; Revised December 27, 1966; Online August 25, 2011


An approximate analysis and experimental data are presented for the transient mean wall temperature of a flat plate of appreciable thermal capacity, heated by a step in the heat generation rate and cooled on both sides by a steady, incompressible turbulent flow with a Prandtl number of unity. Theory and experiments are in agreement over a range of Reynolds numbers 5 × 105 ≤ ReL ≤ 2 × 106 . The experimental mean heat transfer coefficient is observed to go through a dip to a minimum before reaching the steady state. This dip is found to be due to the conjunction of a large wall thermal capacity and a sufficiently high flow velocity.

Copyright © 1967 by ASME
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