TRANSIENT MOTION OF A GAS BUBBLE IN A THERMAL-GRADIENT IN LOW GRAVITY

Authors
OLIVER DLR DEWITT KJ
Citation
Dlr. Oliver et Kj. Dewitt, TRANSIENT MOTION OF A GAS BUBBLE IN A THERMAL-GRADIENT IN LOW GRAVITY, Journal of colloid and interface science, 164(2), 1994, pp. 263-268
Citations number
6
Categorie Soggetti
Chemistry Physical
Journal title
Journal of colloid and interface science → ACNP
ISSN journal
00219797
Volume
164
Issue
2
Year of publication
1994
Pages
263 - 268
Database
ISI
SICI code
0021-9797(1994)164:2<263:TMOAGB>2.0.ZU;2-7
Abstract
The transient motion of a gas bubble induced by thermocapillary action in a low gravity environment is numerically investigated at low to mo derate Marangoni numbers for the special case of high Prandtl number f luids. It was found that for Marangoni numbers greater than unity, the distance traveled by the bubble is a better scale to predict the appr oach to steady-state velocities than is the scaling factor R2/alpha. ( C) 1994 Academic Press, Inc.