Fundamental data on the gas–liquid two-phase flow in minichannels

Ide, Hideo; Kariyasaki, Akira; Fukano, Tohru

doi:10.1016/j.ijthermalsci.2006.07.012

Cited by 92 publications

(61 citation statements)

References 21 publications

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“…Garimella et al (2001) suggested that an additional pressure drop should be taken into account, and this additional pressure drop was caused by the acceleration of the liquid film around a gas slug when it transferred from liquid film to the following liquid slug (near the tail of the bubble) and subsequently mixed with the liquid slug. What is more, Ide et al (2007) found that the frictional multiplier was larger than that predicted by the Chisholm's correlation for slug flow in minichannel, and an additional pressure drop was induced at the tail of a long bubble. However, Chung and Kawaji (2004) suggested that this additional pressure drop could be ignored in micro-channels (D o100 mm), but that could be different for mini-channel.…”

Section: Introductionmentioning

confidence: 79%

Visual investigation on the interface morphology of Taylor bubble and the characteristics of two-phase flow in mini-channel

Chen

Wang

2015

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 79%

Visual investigation on the interface morphology of Taylor bubble and the characteristics of two-phase flow in mini-channel

Chen

Wang

2015

Chemical Engineering Science

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“…Ide et al [14] reported on the results of investigations into the characteristics of an air-water isothermal two-phase flow in minichannels, that was in capillary tubes with = 1 mm, 2.4 mm, and 4.9 mm and also in capillary rectangular channels with AR = 1-9. The directions of flow were vertical upward, horizontal and vertical downward.…”

Section: Literature Reviewmentioning

confidence: 99%

Modeling of Interfacial Component for Two-Phase Frictional Pressure Gradient at Microscales

Awad

Muzychka

2014

Advances in Mechanical Engineering

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A simple approach for calculating the interfacial component of frictional pressure gradient in two-phase flow at microscales is presented. This approach is developed using superposition of three pressure gradients: single-phase liquid, single-phase gas, and interfacial pressure gradient. The proposed model can be transformed in two different ways: first, two-phase interfacial multiplier for liquid flowing alone ( 2 , ) as a function of two-phase frictional multiplier for liquid flowing alone ( 2 ) and the LockhartMartinelli parameter, , and, second, two-phase interfacial multiplier for gas flowing alone ( 2 , ) as a function of two-phase frictional multiplier for gas flowing alone ( 2 ) and the Lockhart-Martinelli parameter, . This proposed model allows for the interfacial pressure gradient to be easily modeled. Comparisons of the proposed model with experimental data for microchannels and minichannels and existing correlations for both and versus are presented.

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“…For millimeter size channels, large variations of the values of C 0 and U G-J are reported in the literature. Ide et al 35 performed experiments for air-water flow in circular and rectangular capillaries with hydraulic diameter in the millimeter range. They found that the drift velocity is approximately zero, independent of the flow direction.…”

Section: à4mentioning

confidence: 99%

Viscous co‐current downward Taylor flow in a square mini‐channel

Keskin

Wörner²,

Soyhan

et al. 2009

AIChE Journal

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This article presents a computational study of the co-current downward Taylor flow of gas bubbles in a viscous liquid within a square channel of 1 mm hydraulic diameter. The three-dimensional numerical simulations are performed with an in-house computer code, which is based on the volume-of-fluid method with interface reconstruction. The computed (always axi-symmetric) bubble shapes are validated by experimental flow visualizations for varying capillary number. The evaluation of the numerical results for a series of simulations reveals the dependence of the bubble diameter and the interfacial area per unit volume on the capillary number. Correlations between bubble velocity and total superficial velocity are also provided. The present results are useful to estimate the values of the bubble diameter, the liquid film thickness and the interfacial area per unit volume from given values of the gas and liquid superficial velocities.

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Fundamental data on the gas–liquid two-phase flow in minichannels

Cited by 92 publications

References 21 publications

Visual investigation on the interface morphology of Taylor bubble and the characteristics of two-phase flow in mini-channel

Visual investigation on the interface morphology of Taylor bubble and the characteristics of two-phase flow in mini-channel

Modeling of Interfacial Component for Two-Phase Frictional Pressure Gradient at Microscales

Viscous co‐current downward Taylor flow in a square mini‐channel

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