Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-28T07:44:13.457Z Has data issue: false hasContentIssue false
  • English
  • Français

Instability of thermocapillary–buoyancy convection in shallow layers. Part 1. Characterization of steady and oscillatory instabilities

Published online by Cambridge University Press:  25 March 1998

R. J. RILEY  and
G. P. NEITZEL
R. J. RILEY
Affiliation:
The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405, USA Present address: Cabot Corporation, Research and Development, Pampa, TX 79066, USA.
G. P. NEITZEL
Affiliation:
The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

Combined thermocapillary–buoyancy convection in a thin rectangular geometry is investigated experimentally, with an emphasis on the generation of hydrothermal-wave instabilities. For sufficiently thin layers, pure hydrothermal waves are observed, and are found to be oblique as predicted by a previous linear-stability analysis (Smith & Davis 1983). For thicker layers, both a steady multicell state and an oscillatory state are found to exist, but the latter is not in the form of a pure hydrothermal wave.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 359 , 25 March 1998 , pp. 143 - 164
Copyright
© 1998 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)