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:: https://doi.org/10.1103/PhysRevE.94.063111
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    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 - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Materials and Fluid Flow Modelling Group
    Identification Number: https://doi.org/10.1103/PhysRevE.94.063111
    Page Range: 063111
    Depositing User: Sergey Lishchuk
    Date Deposited: 06 Dec 2016 14:57
    Last Modified: 18 Mar 2021 04:49
    URI: http://shura.shu.ac.uk/id/eprint/14203

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