Wave Instability of Natural Convection on Inclined Surfaces Accounting for Nonparallelism of the Basic Flow

[+] Author and Article Information
S. E. Haaland, E. M. Sparrow

Fluid Mechanics Program, University of Minnesota, Minneapolis, Minn.

J. Heat Transfer 95(3), 405-407 (Aug 01, 1973) (3 pages) doi:10.1115/1.3450071 History: Received January 12, 1973; Online August 11, 2010


Neutral stability results for Prandtl numbers of 6.7 and 0.733 were obtained by solving disturbance equations that take account of the nonparallelism of the basic flow. Compared with the results for the conventional parallel-flow model, the neutral curves are shifted to higher Grashof numbers and higher wave numbers but maintain their characteristic shapes. The effect of varying the plate inclination from downward-facing to upward facing is to increase the susceptibility of the flow to instability. The critical Grashof numbers are substantially lower than the Grashof numbers of experiments where instability was due to natural disturbances.

Copyright © 1973 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In