Free Convection Through Vertical Plane Layers—Moderate and High Prandtl Number Fluids

[+] Author and Article Information
R. K. MacGregor

The Boeing Company, Seattle, Wash.

A. F. Emery

University of Washington, Seattle, Wash.

J. Heat Transfer 91(3), 391-401 (Aug 01, 1969) (11 pages) doi:10.1115/1.3580194 History: Received June 03, 1968; Revised July 30, 1968; Online August 25, 2011


The results of numerical computations are presented for free convection under isothermal wall and constant-heat-flux wall-boundary conditions. The effects of the Prandtl, Grashof, and Rayleigh numbers, aspect ratio, and variable properties are described. Experimental measurements of net heat transfer through vertical plane layers and of velocity and temperature profiles are given for Prandtl numbers of 1 to 20,000. A comparison of the laminar data with the numerical results shows excellent correlation.

Copyright © 1969 by ASME
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