title: Rheology-modulated contact line dynamics of an immiscible binary system under electrical double layer phenomena.
abstract: We investigate the electrically driven contact line dynamics of a binary fluid system constituted by one Newtonian and another non-Newtonian fluid in a narrow fluidic channel with chemically patched walls. We use a power-law model to describe the rheology of the non-Newtonian fluid and a diffuse interface phase-field method to model the dynamics of multiple phases. We bring out the alteration in the interfacial dynamics as attributable to the rheology-driven modifications in the interfacial stress and its interplay with the Maxwell stress originating from electrokinetic effects.
authors.affiliation: Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India. suman@mech.iitkgp.ernet.in.
authors.forename: Pranab Kumar
authors.initials: PK
authors.lastname: Mondal
authors.forename: Debabrata
authors.initials: D
authors.lastname: DasGupta
authors.forename: Suman
authors.initials: S
authors.lastname: Chakraborty