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Influence of hydrophobicity and roughness on the wetting and flow resistance of water droplets on solid surface: A many-body dissipative particle dynamics study
Du, Qingjun1,2,3; Zhou, Peng1,2,4,5; Pan, Yuping1,2; Qu, Xiao4; Liu, Lu1,2; Yu, Hui1,2; Hou, Jian1,2,3
2022-02-15
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume249Pages:9
AbstractHydrophobicity and roughness are crucial properties for determining rock wetting and flow resistance. The wetting and flow behavior of water droplets on smooth and rough solid surfaces are investigated by performing a many-body dissipative particle dynamics simulation. The results show that, in terms of the roughness, a solid surface can be divided into three regions. In Region I, as inherent hydrophobicity increases, roughness can enhance the apparent hydrophilicity of a hydrophilic surface. In Region II, the increased hydrophobicity improves the apparent hydrophobicity of a more hydrophobic surface. In Region III, when the hydrophobicity is beyond the superhydrophobic boundary, the enhancement effect of the rough surface on the apparent hydrophobicity is weakened or even disappears. With an increase in the roughness, the boundaries among these three regions and their ranges show nonmonotonic changes, making the contact mode (Wenzel state/Cassie and Baxter state), contact angle hysteresis and drag reduction effect change nonmonotonically. (c) 2021 Elsevier Ltd. All rights reserved.
KeywordRoughness Hydrophobicity Wetting Contact angle Hysteresis Flow resistance
DOI10.1016/j.ces.2021.117327
Language英语
WOS KeywordMOLECULAR-DYNAMICS ; WETTABILITY ; BEHAVIOR ; FABRICATION ; NANOFLUIDS ; STABILITY ; FRICTION ; MODEL ; SLIP
Funding ProjectNational Key Research and Development Program of China[2018YFA0702400] ; National Natural Science Founda-tion of China[51904322] ; National Natural Science Founda-tion of China[51574269] ; National Science Foundation for Distinguished Young Scholars of China[51625403] ; Natural Science Foundation of Shan-dong Province[ZR2020ME088] ; Chinese Post-doctoral Science Foundation[2021M693205]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Founda-tion of China ; National Science Foundation for Distinguished Young Scholars of China ; Natural Science Foundation of Shan-dong Province ; Chinese Post-doctoral Science Foundation
WOS IDWOS:000730982900005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51374
Collection中国科学院过程工程研究所
Corresponding AuthorZhou, Peng
Affiliation1.China Univ Petr East China, Key Lab Unconvent Oil & Gas Dev China, Minist Educ, Qingdao 266580, Peoples R China
2.China Univ Petr East China, Sch Petr Engn, 66 Changjiang West Rd, Qingdao 266580, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China
4.China Univ Petr East China, Coll Chem Engn, State Key Lab Heavy Oil Proc, 66 Changjiang West Rd, Qingdao 266580, Peoples R China
5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Du, Qingjun,Zhou, Peng,Pan, Yuping,et al. Influence of hydrophobicity and roughness on the wetting and flow resistance of water droplets on solid surface: A many-body dissipative particle dynamics study[J]. CHEMICAL ENGINEERING SCIENCE,2022,249:9.
APA Du, Qingjun.,Zhou, Peng.,Pan, Yuping.,Qu, Xiao.,Liu, Lu.,...&Hou, Jian.(2022).Influence of hydrophobicity and roughness on the wetting and flow resistance of water droplets on solid surface: A many-body dissipative particle dynamics study.CHEMICAL ENGINEERING SCIENCE,249,9.
MLA Du, Qingjun,et al."Influence of hydrophobicity and roughness on the wetting and flow resistance of water droplets on solid surface: A many-body dissipative particle dynamics study".CHEMICAL ENGINEERING SCIENCE 249(2022):9.
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