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Thermal effects of substrate on Marangoni flow in droplet evaporation: Response surface and sensitivity analysis
Chen X(陈雪); Wang, Xun; Chen, Paul G.; Liu QS(刘秋生); Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
2017-10-01
发表期刊INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷号113页码:354-365
ISSN0017-9310
摘要In this paper, the evaporation of sessile droplets resting on a substrate with different thermal properties is numerically investigated. Computations are based on a transient axisymmetric numerical model. Special attention is paid to evaluate thermal effects of substrate on the structure of bulk fluid flow in the course of evaporation. Numerical results reveal that Marangoni convection induced by non-uniform distribution of temperature along the interface exhibits three distinctly different behaviours: inward flow, multicellular flow and outward flow, consequently resulting in different particle depositions. It is highlighted that three factors (i.e. relative thermal conductivity, relative substrate thickness and relative substrate temperature) strongly affect the flow pattern. In order to further investigate the coupling effects of different influential factors, a Kriging-based response surface method is introduced. We model the flow behaviour as a function of continuous influential factors using a limited number of computations corresponding to discrete values of the inputs. The sensitivities of the Marangoni flow are also analysed using Sobol' index to study the coupling mechanisms of influential factors. The proposed method can be used to forecast the flow patterns for any input parameter without additional sophisticated computer simulation, and allows to confidently estimate an unknown environmental parameter. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Droplet Evaporation Marangoni Flow Thermal Property Response Surface Sensitivity Analysis
DOI10.1016/j.ijheatmasstransfer.2017.05.076
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000406731300036
关键词[WOS]SESSILE DROPLET
WOS研究方向Thermodynamics ; Engineering ; Mechanics
WOS类目Thermodynamics ; Engineering, Mechanical ; Mechanics
项目资助者National Natural Science Foundation of China(11532015 ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences(XDA04073000 ; CNES (Centre National d'Etudes Spatiales) ; CAS ; CNRS/CNES ; 11302236) ; XDA04020202-02)
课题组名称NML流动稳定性与复杂流动
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力学所作者排名1
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/70034
专题国家微重力实验室
通讯作者Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Chen X,Wang, Xun,Chen, Paul G.,et al. Thermal effects of substrate on Marangoni flow in droplet evaporation: Response surface and sensitivity analysis[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2017,113:354-365.
APA 陈雪,Wang, Xun,Chen, Paul G.,刘秋生,&Liu, QS .(2017).Thermal effects of substrate on Marangoni flow in droplet evaporation: Response surface and sensitivity analysis.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,113,354-365.
MLA 陈雪,et al."Thermal effects of substrate on Marangoni flow in droplet evaporation: Response surface and sensitivity analysis".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 113(2017):354-365.
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