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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.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2017-10-01
Volume113Pages:354-365
ISSN0017-9310
AbstractIn 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.
KeywordDroplet Evaporation Marangoni Flow Thermal Property Response Surface Sensitivity Analysis
DOI10.1016/j.ijheatmasstransfer.2017.05.076
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000406731300036
WOS KeywordSESSILE DROPLET
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
Funding OrganizationNational 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)
DepartmentNML流动稳定性与复杂流动
Classification一类
Ranking1
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/70034
Collection国家微重力实验室
Corresponding AuthorLiu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Recommended Citation
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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