Wave Instability of Natural Convection Flow on Inclined Surfaces

Author

Keh-Lih Tzuoo
T. S. Chen, Missouri University of Science and TechnologyFollow
Bassem F. Armaly, Missouri University of Science and TechnologyFollow

Abstract

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.

Recommended Citation

K. Tzuoo et al., "Wave Instability of Natural Convection Flow on Inclined Surfaces," Journal of Heat Transfer, American Society of Mechanical Engineers (ASME), Jan 1973.

The definitive version is available at https://doi.org/10.1115/1.3450071

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Waves; Natural Convection; Flow (Dynamics); Foundry Coatings; Stability; Equations; Shapes

International Standard Serial Number (ISSN)

0022-1481

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1973 American Society of Mechanical Engineers (ASME), All rights reserved.

Publication Date

01 Jan 1973