Internal mass and heat transfer between a single deformable droplet and simple extensional creeping flow

doi:10.1016/j.ijheatmasstransfer.2018.07.135

	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
	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.