2008
DOI: 10.1088/0957-0233/20/2/025402
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2D fringe probing of liquid film dynamics of a plug bubble in a micropipe

Abstract: Research on bubble dynamics and heat transfer in micropipe two-phase flows is an important area in micro electronic cooling, microfluidics and non-invasive laser/ultrasound microsurgery. For example, a pulsating heat pipe (PHP) is a very effective heat transfer device which made of a relatively long and thin sealed pipe containing both phases of the working fluid. The inner diameter of the pipe must be sufficiently small so that vapor bubbles can grow to vapor plugs in the tube. The optical diagnostic techniqu… Show more

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Cited by 5 publications
(7 citation statements)
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References 23 publications
(4 reference statements)
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“…Taylor's hypothesis assumes that the time-space transformation is linear: , , 0 R r R r U (10) which can be further transformed to relate the time-correlation and space-correlation: 0, , 0 R R U (11) Therefore, the spatial distribution can be constructed simply using Eq. (12). U dy dt (12) where U is the mean flow velocity.…”
Section: Spatial Expansion Of Temporal Thickness Fluctuationmentioning
confidence: 99%
See 1 more Smart Citation
“…Taylor's hypothesis assumes that the time-space transformation is linear: , , 0 R r R r U (10) which can be further transformed to relate the time-correlation and space-correlation: 0, , 0 R R U (11) Therefore, the spatial distribution can be constructed simply using Eq. (12). U dy dt (12) where U is the mean flow velocity.…”
Section: Spatial Expansion Of Temporal Thickness Fluctuationmentioning
confidence: 99%
“…Over the years, various experimental techniques have been developed to measure thin liquid film flows [10][11][12][13][14][15][16]. Among these techniques, fluorescence imaging based, stereoscopic imaging based, density based, and structured light projection techniques are most frequently used.…”
Section: Introductionmentioning
confidence: 99%
“…The dynamics of interfacial film displacement are often controlled by the capillary number, and usually include events of how the liquid-gas interface evolves, depending on flow conditions and fluid properties [7][8][9][10][11][12]. However, the processes of liquid film formation, development and breakup are complex which involve the interfacial tension between fluid-fluid and fluid-solid, and the capillary induced instability of thin liquid film breakup.…”
Section: Introductionmentioning
confidence: 99%
“…Qiu et al [10], Wang andand Qiu [11] developed an optical method that can measure the interfacial film thickness utilizing fringe scattering technique. Ji and Qiu [12] further extended this method to 2D utilizing a laser sheet. Some other optical methods, based on counting the pixels of liquid film thickness, are too simple to get high resolution, for example, Ong and Thome [13], Schubring et al [14].…”
Section: Introductionmentioning
confidence: 99%