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Updated: Apr 6, 2026

Dielectric RheoSANS — Simultaneous Interrogation of Impedance, Rheology and Small Angle Neutron Scattering of Complex Fluids
Published on: April 10, 2017
Rheology-modulated contact line dynamics of an immiscible binary system under electrical double layer phenomena
Pranab Kumar Mondal1, Debabrata DasGupta, Suman Chakraborty
1Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India. suman@mech.iitkgp.ernet.in.
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.
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