Unsteady thermocapillary flows and free surface oscillations

Chun Liang Lai, Tian-Shiang Yang

研究成果: Article

2 引文 (Scopus)

摘要

The unsteady thermocapillary flow and the free surface variation in a two-dimensional, thin liquid layer are investigated theoretically. The temperature is fixed at one end and sinusoidally varied at the other. By employing sine series expansions, the asymptotically oscillatory solutions of the u-velocity distribution and the free surface deformation are solved exactly. It is found that there exists an inversely proportional relation between τu, the u-velocity time scale and τs, the free-surface variation time scale, when the free surface has a maximum oscillation. Near the maximum oscillation conditions, the u-velocity may assume a uni-directional distribution across the layer depth. Furthermore, the deformation of the free surface becomes smaller when the gravity effect becomes more important.

原文English
頁(從 - 到)629-640
頁數12
期刊Acta Astronautica
21
發行號9
DOIs
出版狀態Published - 1990 一月 1

指紋

Unsteady flow
Velocity distribution
Gravitation
Liquids
Temperature

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

引用此文

Lai, Chun Liang ; Yang, Tian-Shiang. / Unsteady thermocapillary flows and free surface oscillations. 於: Acta Astronautica. 1990 ; 卷 21, 編號 9. 頁 629-640.
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Unsteady thermocapillary flows and free surface oscillations. / Lai, Chun Liang; Yang, Tian-Shiang.

於: Acta Astronautica, 卷 21, 編號 9, 01.01.1990, p. 629-640.

研究成果: Article

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