Lattice Boltzmann study of successive droplets impingement on the non-ideal recessed microchannel for high-resolution features

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	Lattice Boltzmann study of successive droplets impingement on the non-ideal recessed microchannel for high-resolution features
	Zhang DY(张丁一); Song Y(宋岩); Zhang L(张磊); Cheng XD(程晓鼎); Ku T(库涛)
刊名	International Journal of Heat and Mass Transfer
	2018
卷号	120 页码:1085-1100
关键词	Lattice Boltzmann method Microchannel Multiple-relaxation-time Contact angles hysteresis Collision modes
ISSN号	0017-9310
通讯作者	Zhang L(张磊)
产权排序	1
中文摘要	Successive droplets deposited high-resolution features on the non-ideal recessed microchannel is investigated utilizing a 3D multiple-relaxation-time (MRT) pseudopotential lattice Boltzmann (LB) model with large density ratios and high Reynolds numbers. The non-ideal hydrophilic wettability is modeled by the geometric formulation within the pseudopotential LB framework. Firstly, for single droplet impingement on the square microchannel, three liquid morphologies including quatrefoil-like, quasi-square and quasi-rounded footprints are observed with varying aspect ratios of microchannel. Next, considering two successive droplets impingement on the rectangular microchannel, with the droplet spacings increasing, the liquid morphologies including bulging, uniform and dumbbell footprints are quantitatively identified. With the formation of connecting ridge, the optimal droplet spacing in in-phase collision mode is larger than that in out-of-phase mode. Besides, the deviations between simulations and theoretical values are observed which are attributed to the intensive inertial dominated flows. Finally, as extending to the multi-droplets deposited lines and films, the optimal droplet spacings are adaptive in both collision and placement modes for uniform and high-resolution features. © 2017 Elsevier Ltd
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Engineering ; Mechanics
关键词[WOS]	SUBSTRATE ; SURFACES ; MODELS ; SIMULATION ; DEPOSITION ; IMPACT ; TRACKS
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000424716500093
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/21481]
专题	沈阳自动化研究所_数字工厂研究室
作者单位	1.Liaoning University, Shenyang, 110036, China 2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China 3.University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式 GB/T 7714	Zhang DY,Song Y,Zhang L,et al. Lattice Boltzmann study of successive droplets impingement on the non-ideal recessed microchannel for high-resolution features[J]. International Journal of Heat and Mass Transfer,2018,120:1085-1100.
APA	Zhang DY,Song Y,Zhang L,Cheng XD,&Ku T.(2018).Lattice Boltzmann study of successive droplets impingement on the non-ideal recessed microchannel for high-resolution features.International Journal of Heat and Mass Transfer,120,1085-1100.
MLA	Zhang DY,et al."Lattice Boltzmann study of successive droplets impingement on the non-ideal recessed microchannel for high-resolution features".International Journal of Heat and Mass Transfer 120(2018):1085-1100.