Wave Instability of Natural Convection Flow on Inclined Surfaces

[+] Author and Article Information
K. L. Tzuoo, T. S. Chen, B. F. Armaly

Department of Mechanical and Aerospace Engineering, University of Missouri-Rolla, Rolla, Mo. 65401

J. Heat Transfer 107(1), 107-111 (Feb 01, 1985) (5 pages) doi:10.1115/1.3247364 History: Received August 25, 1983; Online October 20, 2009


Wave instability of nautral convection boundary layer flow adjacent to inclined surfaces is analyzed by a linear theory. The effects of the nonparallelism of the main flow and thermal fields are taken into account in the analysis. Neutral stability results for Prandtl numbers of 0.7 and 7.0 are presented for upward-facing heated surfaces, for angles of inclination ranging from 0 to 90 deg. These results are compared with available analytical wave instability results for small angles of inclination. They are also compared with analytical vortex instability results and with available experimental data.

Copyright © 1985 by ASME
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