TY - GEN
T1 - Double Diffusive Convection in a Stratified Fluid Layer Induced by Thermal and Solutal Capillary Motion
AU - Chan, C. L.
AU - Chen, C. F.
N1 - Publisher Copyright:
© 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1997
Y1 - 1997
N2 - Salt-finger convection in a double-diffusive system is a motion caused by the release of gravitational potential due to differential diffusion rates. The normal expectation is that, when gravitational field is reduced, salt-finger convection together with other convective motions driven by buoyancy forces will be rapidly suppressed. However, because the destabilizing effect of the concentration gradient is amplified by the Lewis number, with values varying from 102 for aqueous salt solutions to 104 for liquid metals, salt-finger convection may be generated at much reduced gravity levels. In the microgravity environment, the surface tension gradient assumes a dominant role in causing fluid motion. In this paper, we report experimental and numerical results showing the generation of salt-finger convection due to capillary motion on the surface of a stratified fluid layer.
AB - Salt-finger convection in a double-diffusive system is a motion caused by the release of gravitational potential due to differential diffusion rates. The normal expectation is that, when gravitational field is reduced, salt-finger convection together with other convective motions driven by buoyancy forces will be rapidly suppressed. However, because the destabilizing effect of the concentration gradient is amplified by the Lewis number, with values varying from 102 for aqueous salt solutions to 104 for liquid metals, salt-finger convection may be generated at much reduced gravity levels. In the microgravity environment, the surface tension gradient assumes a dominant role in causing fluid motion. In this paper, we report experimental and numerical results showing the generation of salt-finger convection due to capillary motion on the surface of a stratified fluid layer.
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U2 - 10.1115/IMECE1997-0967
DO - 10.1115/IMECE1997-0967
M3 - Conference contribution
AN - SCOPUS:85127070979
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 273
EP - 281
BT - Microelectromechanical Systems (MEMS)
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1997 International Mechanical Engineering Congress and Exposition, IMECE 1997 - Microelectromechanical Systems (MEMS)
Y2 - 16 November 1997 through 21 November 1997
ER -