Thermocapillary deformation of a locally heated liquid film moving under the action of a gas flow

被引：27

作者：

Gatapova, EY ^{[1
]}

Kabov, OA ^{[1
]}

Marchuk, IV ^{[1
]}

机构：

[1] Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Div, Novosibirsk, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2004年 / 30卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Boundary Layer; Heat Flux; Laminar Flow; Film Surface; Liquid Film;

D O I：

10.1134/1.1760873

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose a two-dimensional model of a steady laminar flow of a liquid film in a channel in the presence of a cocurrent gas flow. An analytical solution for the problem of temperature distribution is obtained for a linear flow velocity profile. The linearized problem of thermocapillary deformation of the film surface caused by local heating at a constant heat flux is solved. It is established that a thermocapillary bump is formed in the region where a thermal boundary layer emerges on the film surface. Additional perturbations, decaying in the upstream direction, can be present on the free surface in front of the bump. A criterion determining this effect is found. (C) 2004 MAIK "Nauka/Interperiodica".

引用

页码：418 / 421

页数：4

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