Review on effect of two-phase interface morphology evolution on flow and heat transfer characteristics in confined channel

Deng, Jian; Lu, Qi; Liu, Yu; Qiu, Zhifang; Huang, Huijian; Zhang, Yong

doi:10.1007/s00231-020-02932-8

Cited by 4 publications

(1 citation statement)

References 174 publications

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“…Bubble is widespread in various industrial fields, such as refrigeration, sewage treatment, renewable energy, and national defence, [1][2][3][4] where its dynamic behaviour directly affects the mass transfer performance of the equipment and even its safety. [5][6][7][8] In general, bubble formation is influenced by many factors, including fluid physical property, [9][10][11][12] gas escaping hole characteristic, [13][14][15][16] gas flow rate, [17][18][19] liquid flow rate, [20][21][22] and so on, which is a complicated, non-linear, asymmetrical, and unstable process. [23][24][25] Therefore, it is of great theoretical significance to study the dynamic behaviour of bubble.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on dynamic behaviour of bubbles emerging from micro‐capillary orifice in a flow channel

et al. 2022

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The flow phenomenon of liquid with bubbles is widespread in various industrial fields, which determines the mass transfer characteristics of the equipment. In this work, the dynamic behaviour of bubbles emerging from micro-capillary orifice in a flow channel was studied by a visualization experiment, while the effects of gas flow rate and liquid flow rate on these processes of bubble growth, departure, and inrush were explored. The experimental results showed that one bubble formation cycle can be divided into three stages: Waiting, departure, and inrush, as well as the dynamic behaviour of bubble emerging from micro-capillary orifice in a flow channel, were significantly affected by gas flow rate and liquid flow rate. At a higher gas flow rate, the growth time and the departure time were shorter, as well as the departure volume of the leading bubble and the inrush volume of the trailing bubble were smaller, while the transverse longitudinal ratio fluctuated more violently, and the swing amplitude of the bubble centroid was greater. With an increasing liquid flow rate, the growth time, the departure time, and the inrush time shortened, while the departure volume of the leading bubble decreased and the fluctuation of the bubble centroid weakened. These findings are conducive to improving the performance of the equipment by optimizing the design of the aerator to regulate the dynamic behaviour of bubbles.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation on dynamic behaviour of bubbles emerging from micro‐capillary orifice in a flow channel

et al. 2022

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Numerically analyzed of ternary hybrid nanofluids flow of heat and mass transfer subject to various shapes and size factors in two-dimensional rotating porous channel

Raza,

Wang,

Muhammed

et al. 2024

Case Studies in Thermal Engineering

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Heating-induced release of trapped bubbles from dead-end pore throats filled with nonvolatile liquid

Wang,

Feng,

Zhang

et al. 2024

Physics of Fluids

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The release of trapped bubbles from dead-end pore throats filled with nonvolatile liquid has widespread applications in gas–liquid reactors, radiators, foam flooding, ceramic sintering, and droplet microcarriers. As conventional pressure-driven flow cannot induce the transport of bubbles in dead-end pores, this paper explores the possibility of using heating to control the release of bubbles from dead-end pore throats. Visualization experiments of the microfluidics within a dead-end pore throat structure are conducted to address the release process of bubbles during heating. An increase in temperature causes dissolved gas in the solution to be transferred to the bubble, which enhances the bubble pressure and enables the bubble to pass through the pore throat. We analyze the effects of the initial bubble radius and initial temperature on the critical temperature Tcr at which the bubble passes through the pore throat. A larger initial radius does not necessarily make it more difficult for the bubble to pass through the throat, but there is a critical radius above which any increase in radius produces a lower value of Tcr. A theoretical model considering diffusion mass transfer, capillary forces, and corner film flows is developed, and this model is found to be in good agreement with the experimental results. Finally, we obtain three dimensionless numbers that can be used to predict Tcr. Our work provides guidance for the effective regulation of diffusive growth and the heating-induced release of bubbles from dead-end pore throats.

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Review on effect of two-phase interface morphology evolution on flow and heat transfer characteristics in confined channel

Cited by 4 publications

References 174 publications

Experimental investigation on dynamic behaviour of bubbles emerging from micro‐capillary orifice in a flow channel

Experimental investigation on dynamic behaviour of bubbles emerging from micro‐capillary orifice in a flow channel

Numerically analyzed of ternary hybrid nanofluids flow of heat and mass transfer subject to various shapes and size factors in two-dimensional rotating porous channel

Heating-induced release of trapped bubbles from dead-end pore throats filled with nonvolatile liquid

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