Internal mass and heat transfer between a single deformable droplet and simple extensional creeping flow | |
Liu, AJ; Chen, J; Wang, ZZ; Mao, ZS; Yang, C; Liu, Anjun; Chen, Jie; Wang, Zhenzhen; Mao, Zai-Sha; Yang, Chao | |
刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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2018 | |
卷号 | 127页码:1040 |
关键词 | Internal mass/heat transfer NUMERICAL-SIMULATION Uniaxial/biaxial extensional flow SPHEROIDAL DROPS Deformable droplet FLUID SPHERE Empirical correlation SLENDER DROP BREAKUP STREAMLINES EVAPORATION DYNAMICS STEADY |
ISSN号 | 0017-9310 |
DOI | 10.1016/j.ijheatmasstransfer.2018.07.135 |
文献子类 | Article |
英文摘要 | This work studied numerically the internal mass/heat transfer of a deformable droplet immersed in a simple extensional flow. The droplet would deform gradually from prolate spheroid to 'peanut' in uniaxial extensional flow, or from oblate spheriod to 'red-blood-cell' in biaxial extensional flow. Based on the analytical solution of Stokes flow over a deformable droplet, the convection-diffusion transport equation was numerically solved by the finite difference method. The results show that the heat/mass transfer behaviors of a deformable droplet were different when compared with that of a spherical one. The effects of Pe (1 <= Pe <= 10000), capillary number Ca (0 <= Ca <= 0.5), viscosity ratio lambda (0.01 <= lambda <= 100) and the extensional flow direction on the Sh and mean concentration were numerically investigated. It shows that the internal mass/heat transfer rate was always enhanced with the increased degree of drop deformation in the diffusion-dominated case in both uniaxial/biaxial extensional flows. However, in the convection-dominated case, the flow direction has opposite influence on transport rates of mass/heat transfer with different deformation rates. The stabilized mass transfer rate decreased for droplets with different deformation in the order: 'red-blood-cell' shaped droplet, oblate droplet, prolate droplet and 'peanut' shaped droplet. At last, we proposed the empirical correlations to predict the internal mass/heat transfer rate of a deformable droplet (by adding the parameter Ca to represent the deformation of a droplet) in simple extensional flow. (C) 2018 Elsevier Ltd. All rights reserved. |
WOS记录号 | WOS:000451366000087 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/26749] ![]() |
专题 | 中国科学院过程工程研究所 |
推荐引用方式 GB/T 7714 | Liu, AJ,Chen, J,Wang, ZZ,et al. Internal mass and heat transfer between a single deformable droplet and simple extensional creeping flow[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2018,127:1040, 1053. |
APA | Liu, AJ.,Chen, J.,Wang, ZZ.,Mao, ZS.,Yang, C.,...&Yang, Chao.(2018).Internal mass and heat transfer between a single deformable droplet and simple extensional creeping flow.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,127,1040. |
MLA | Liu, AJ,et al."Internal mass and heat transfer between a single deformable droplet and simple extensional creeping flow".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 127(2018):1040. |
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