Numerical simulation on vapor absorption by wavy lithium bromide aqueous solution films

Bo, Shoushi; Ma, Xuehu; Chen, Hongxia; Lan, Zhong

doi:10.1007/s00231-011-0820-x

Cited by 20 publications

(10 citation statements)

References 14 publications

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“…Comparison of the present simulation to the experimental and numerical results reported in the open literature (Re=20.1, f=27 Hz). (a) Calculated results of Gao et al; (b) Kapitza's shadowgraph; (c) numerical results obtained by Bo et al; (d) calculated results in this work.…”

Section: Mathematical Modellingmentioning

confidence: 77%

“…The surface tension is of great importance for thin film flows . The treatment of surface tension was with the CSF model as proposed by Brackbill et al The surface tension here is transformed to a volume force F vol .…”

Section: Mathematical Modellingmentioning

confidence: 99%

“…Figure shows the comparison of several researchers' calculated stationary sinusoidal wave shapes under the conditions Re = 20 and disturbance frequency = 27 Hz. The shadowgraph is from Kapitza and Kapitza's experimental results, and the simulated wave shapes calculated by Gao et al and Bo et al are also presented here for comparison. Figure a is the simulation result from Gao et al; Figure b is the shadowgraph from the experiments; Figure c is the calculation by Bo et al, and Figure d shows the results calculated in this study.…”

Section: Mathematical Modellingmentioning

confidence: 99%

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Numerical investigation on hydrodynamics of vertically confined free film

Yang

et al. 2016

Can J Chem Eng

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For intensification of the film transfer process, flow behaviours of a novel type of liquid film, “confined free film” (a coexistence of both wall‐bounded and unbounded films), on a vertically‐aligned plate with an open window were investigated using the CFD modelling approach. It was found from the simulations that the liquid flow profiles of confined free film in the region of the open window vary with flow time. The average film thickness of the confined free film in the open window region is approximately 0.50∼0.67 of that in the solid wall region, while the corresponding velocity is approximately 1.7∼2.0 times faster. The falling film reaches its maximum thickness value and maximum velocity magnitude at the lower part of the open‐window region in the current study. Simulation results also indicated that the region of the lower‐wall plate promotes both varicose and sinuous wavy behaviour of the confined free film, while the open‐window region assists in exciting film wave motion in the lower‐wall region. Compared with vertically falling free film, the confined free film exhibits several distinctive features in its flow behaviour.

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Section: Mathematical Modellingmentioning

confidence: 77%

Section: Mathematical Modellingmentioning

confidence: 99%

Section: Mathematical Modellingmentioning

confidence: 99%

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Numerical investigation on hydrodynamics of vertically confined free film

Yang

et al. 2016

Can J Chem Eng

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“…[82], and the effect of variable physical properties on the absorption process was analyzed by them. They also simulated the vapor absorption by wavy lithium bromide aqueous solution films, and concluded that solitary waves can enhance heat transfer, and also strengthen the absorption process [84]. Zhang et al [85] tested the performance of an open absorption heat transformer (OAHT) combined with single-effect or multieffect distillation (Fig.…”

Section: The Absorption Systemmentioning

confidence: 98%

A comprehensive review on advances and applications of industrial heat pumps based on the practices in China

Zhang

et al. 2016

Applied Energy

182

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“…The increase of spray density makes the liquid film distribute uniformly and the liquid film starts to appear wave motion simultaneity. There are back flow areas in the solitary wave which have the opposite direction to the bulk flow[19,20]. Moreover, the micro back flows keep disturbing surface and bottom layer of the solution which contribute to the enhancement of heat transfer.…”

mentioning

confidence: 98%