UNSTEADY THERMOCAPILLARY MIGRATION OF ISOLATED DROPS IN CREEPING FLOW

被引:12
|
作者
DILL, LH [1 ]
BALASUBRAMANIAM, R [1 ]
机构
[1] CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106
关键词
DROPS; THERMOCAPILLARY FLOW; TRANSIENT FLOW; CREEPING FLOW; MICROGRAVITY; NEWTONIAN FLUIDS;
D O I
10.1016/0142-727X(92)90062-E
中图分类号
O414.1 [热力学];
学科分类号
摘要
The problem of an isolated immiscible drop that slowly migrates due to unsteady thermocapillary stresses is considered. All physical properties except for interfacial tension are assumed constant for the two Newtonian fluids. Explicit expressions are found for the migration rate and stream functions in the Laplace domain. The resulting microgravity theory is useful, e.g., in predicting the distance a drop will migrate due to an impulsive interfacial temperature gradient as well as the time required to attain steady flow conditions from an initially resting state.
引用
收藏
页码:78 / 85
页数:8
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