Dilatational viscosity of dilute particle-laden fluid interface at different contact angles

LISHCHUK, Sergey (2016). Dilatational viscosity of dilute particle-laden fluid interface at different contact angles. Physical Review E (PRE), 94 (6), 063111.

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Official URL: http://journals.aps.org/pre/abstract/10.1103/PhysR...
Link to published version:: 10.1103/PhysRevE.94.063111

Abstract

We consider a solid spherical particle adsorbed at a flat interface between two immiscible fluids and having arbitrary contact angle at the triple contact line. We derive analytically the flow field corresponding to dilatational surface flow in the case of large ratio of dynamic shear viscosities of two fluids. Considering a dilute assembly of such particles we calculate numerically the dependence upon the contact angle of the effective surface dilatational viscosity particle-laden fluid interface. The effective surface dilatational viscosity is proportional to the size and surface concentration of particles and monotonically increases with the increase in protrusion of particles into the fluid with larger shear viscosity.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Materials and Fluid Flow Modelling Group
Identification Number: 10.1103/PhysRevE.94.063111
Depositing User: Sergey Lishchuk
Date Deposited: 06 Dec 2016 14:57
Last Modified: 22 Nov 2017 07:12
URI: http://shura.shu.ac.uk/id/eprint/14203

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