Hydrodynamic simulations of self-phoretic microswimmers

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	Hydrodynamic simulations of self-phoretic microswimmers
	Yang, MC ; Wysocki, A ; Ripoll, M
刊名	SOFT MATTER
	2014
卷号	10 期号:33 页码:6208
ISSN号	1744-683X
通讯作者	Yang, MC (reprint author), Forschungszentrum Julich, Inst Complex Syst, D-52425 Julich, Germany.
中文摘要	A mesoscopic hydrodynamic model to simulate synthetic self-propelled Janus particles which is thermophoretically or diffusiophoretically driven is here developed. We first propose a model for a passive colloidal sphere which reproduces the correct rotational dynamics together with strong phoretic effect. This colloid solution model employs a multiparticle collision dynamics description of the solvent, and combines stick boundary conditions with colloid-solvent potential interactions. Asymmetric and specific colloidal surface is introduced to produce the properties of self-phoretic Janus particles. A comparative study of Janus and microdimer phoretic swimmers is performed in terms of their swimming velocities and induced flow behavior. Self-phoretic microdimers display long range hydrodynamic interactions with a decay of 1/r(2), which is similar to the decay of gradient fields generated by self-phoretic particle, and can be characterized as pullers or pushers. In contrast, Janus particles are characterized by short range hydrodynamic interactions with a decay of 1/r(3) and behave as neutral swimmers.
资助信息	Institute of Physics, Chinese Academy of Sciences, China; VW Foundation (VolkswagenStiftung)
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59745]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yang, MC,Wysocki, A,Ripoll, M. Hydrodynamic simulations of self-phoretic microswimmers[J]. SOFT MATTER,2014,10(33):6208.
APA	Yang, MC,Wysocki, A,&Ripoll, M.(2014).Hydrodynamic simulations of self-phoretic microswimmers.SOFT MATTER,10(33),6208.
MLA	Yang, MC,et al."Hydrodynamic simulations of self-phoretic microswimmers".SOFT MATTER 10.33(2014):6208.