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Fluid Property Effects on the Splashing in Teapot Effect
Shi LC; Li YZ; Meng YG; Hu GQ(胡国庆); Tian Y
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2018-09-20
Volume122Issue:37Pages:21411-21417
ISSN1932-7447
AbstractLiquid flowing on a curved solid surface usually leads to a typical teapot effect. As the jet velocity increases, the liquid detaches from a curved solid surface completely in one streamline or partially in multiple streamlines. We called the latter splashing. Former studies attributed the splashing behavior to the breaking of the balance between the centrifugal force and the pressure drop across the liquid flow. This study disclosed that the parameters of surface tension, viscosity, and additive molecules of liquid significantly affected the jet splashing in teapot effect. A liquid with a higher Weber number (lower surface tension) and a lower Reynolds number (higher viscosity) prefers to separate from the solid surface in one streamline. Besides, a liquid with larger molecular weight additives is easier to splash. Molecular dynamics simulations disclosed that a higher water molecule density around the additive molecules with a larger cohesive force could more effectively suppress splashing. There is no splashing when the cohesive force is larger than the capillary adhesion force. Otherwise, splashing would occur. This study discloses the importance of cohesive force in the splashing in teapot effect, which might provide an effective guide for industrial applications by tuning the splashing.
DOI10.1021/acs.jpcc.8b05613
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000445711100033
WOS KeywordPOURING FLOWS ; DYNAMICS ; JET ; SIMULATION ; SHEETS ; ACID
WOS Research AreaChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS SubjectChemistry ; Science & Technology - Other Topics ; Materials Science
Funding OrganizationNatural Science Foundation of China [51425502]
Classification二类/Q1
Ranking4
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77856
Collection非线性力学国家重点实验室
Affiliation1.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
2.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Shi LC,Li YZ,Meng YG,et al. Fluid Property Effects on the Splashing in Teapot Effect[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(37):21411-21417.
APA Shi LC,Li YZ,Meng YG,胡国庆,&Tian Y.(2018).Fluid Property Effects on the Splashing in Teapot Effect.JOURNAL OF PHYSICAL CHEMISTRY C,122(37),21411-21417.
MLA Shi LC,et al."Fluid Property Effects on the Splashing in Teapot Effect".JOURNAL OF PHYSICAL CHEMISTRY C 122.37(2018):21411-21417.
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