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Observation of Flow and Temperature Oscillations around a Bubble on a SolidSurface Subject to a Vertical Temperature Gradient

机译：用垂直温度梯度观察固体表面气泡周围的流动和温度振荡

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In space and many industrial cases on earth which involve materials processing,manufacturing, and storage and management of liquids, the interaction between gas and vapor bubbles with the surrounding is of great interest. Study of thermocapillary motions near bubbles attached to a heated or cooled wall in conjunction with the space experiments has received considerable attention in recent years. We present results of preliminary experimental observations which have indicated that when the Marangoni number is increased beyond a critical value, a series of oscillatory modes develop in the vicinity of the bubble. The oscillations have been detected in both the basic flow induced by combined Marangoni and buoyancy effects, by using a laser sheet for tracing particles, and in the temperature field visualized by interferometry techniques. The influence of the Marangoni and Prandtl numbers and bubble geometry on the oscillations are indicated.

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作者
Rashidnia, N.;
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年度 1995
页码
总页数 12
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Bubbles; Capillary flow; Oscillations; Solid surfaces; Spaceborne experiments; Temperature gradients; Buoyancy; Interferometry; Lasers; Marangoni convection; Temperature distribution;

机译：气泡;毛细管流动;振荡;固体表面;星载实验;温度梯度;浮力;干涉测量;激光; marangoni对流;温度分布;

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8. Observation of Flow and Temperature Oscillations Around a Bubble on a Solid Surface Subject to a Vertical Temperature Gradient [R] . Rashidnia, Nasser 1995

机译：用垂直温度梯度观察固体表面气泡周围的流动和温度振荡

Observation of Flow and Temperature Oscillations around a Bubble on a SolidSurface Subject to a Vertical Temperature Gradient

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