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Instability of thermocapillary–buoyancy convection in shallow layers. Part 2. Suppression of hydrothermal waves

Published online by Cambridge University Press:  25 March 1998

S. BENZ ,
P. HINTZ ,
R. J. RILEY  and
G. P. NEITZEL
S. BENZ
Affiliation:
Physikalisches Institut, Universität Gießen, Germany
P. HINTZ
Affiliation:
Physikalisches Institut, Universität Gießen, Germany
R. J. RILEY
Affiliation:
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
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Abstract

Hydrothermal-wave instabilities in thermocapillary convection are known to produce undesirable effects when they occur during the float-zone crystal-growth process, and perhaps in other situations. Suppression of the hydrothermal-wave instability produced in the model system of Part 1 (Riley & Neitzel 1998) is demonstrated through the sensing of free-surface temperature perturbations and the periodic addition of heat at the free surface along lines parallel to the crests of the hydrothermal waves.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 359 , 25 March 1998 , pp. 165 - 180
Copyright
© 1998 Cambridge University Press

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