Apparent hydrodynamic slip induced by density inhomogeneities at fluid-solid interfaces

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题名:	Apparent hydrodynamic slip induced by density inhomogeneities at fluid-solid interfaces
作者:	曹恆光;Xu, Junbo;Yang, Chao;Sheng, Yu-Jane;Tsao, Heng-Kwong
贡献者:	工學院化學工程與材料工程學系
关键词:	Density;Fluid dynamics;Fluid flow;Inhomogeneities;Simulation;Slip;Viscosity;Walls
日期:	2015-07-28
上传时间:	2026-04-21 14:37:59 (UTC+8)
出版者:	Royal Society of Chemistry;England
摘要:	摘要： This study demonstrates that even when the no-slip condition is satisfied on the surface of a solid wall, apparent hydrodynamic slip can be clearly seen owing to a continuous variation of viscosity associated with density inhomogeneity near the wall. The relationship between the apparent slip length and the local fluid properties, such as viscosity and/or density, has been established theoretically. The apparent slip length depends on the flow type and three cases are considered: shear-driven flow, body force-driven flow, and flow driven by external force acting on adsorbed solutes. Particle-based simulations have been performed and the consistency between our theory and the simulation has been verified. This study demonstrates that even when the no-slip condition is satisfied on the surface of a solid wall, apparent hydrodynamic slip can be clearly seen owing to a continuous variation of viscosity associated with density inhomogeneity near the wall. 其他題名： Soft Matter 出版者： England 出版日期： 2015-01-01 出處： Soft matter, 2015-01, Vol.11 (35), p.6916-692 識別號： ISSN: 1744-683X 識別號： ISSN: 1744-6848 識別號： EISSN: 1744-6848 識別號： DOI: 10.1039/c5sm01627d 識別號： PMID: 26252904
显示于类别:	[化學工程與材料工程學系 ] 期刊論文

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