Record Details

Bubble Solid Interaction

Electronic Theses of Indian Institute of Science

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Field Value
 
Title Bubble Solid Interaction
 
Creator Mukherjee, Manas
 
Subject Metallurgy
Bubble
Three Phase Contact (TPC)
Spreading
Thin Liquid Film
Hydrophobic
Hydrophilic
 
Description The interaction of a bubble with solid surfaces, hydrophobic and hydrophilic, was investigated. When a bubble approaches towards a solid surface, a thin liquid film forms between them. The liquid in the film drains until an instability forms and film ruptures resulting in a three phase contact (TPC). Following rupture, the TPC line spreads on the solid surface. In the present study, glycerol-water solutions with varying percentages of water were used to investigate the effect of viscosity. Experiments were carried out with varying bubble size. The rupture and TPC line movement were recorded by high-speed digital video camera. The dependence of the TPC line movement on different parameters was investigated. The experimental results were compared with the existing theories for the TPC line movement. An empirical equation was developed to predict the TPC line movement. Formation or rupturing of the intervening film in case of a hydrophilic surfaces, which were glass surface cleaned by six cleaning techniques, was investigated. It was shown that a stable film forms for acid or alkali cleaning.
 
Publisher Indian Institute of Science
 
Contributor Lahiri, A.K.
 
Date 2005-03-09T05:38:06Z
2005-03-09T05:38:06Z
2005-03-09T05:38:06Z
2004-12
 
Type Electronic Thesis and Dissertation
 
Format 2168108 bytes
application/pdf
 
Identifier http://etd.iisc.ernet.in/handle/2005/78
6410-210-021-02371
 
Language en
 
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