11 citations · 29 across the 8 of their papers we have counts for
8 papers
Permeability heterogeneity and bulk linear elasticity of displaced clay suspensions determine interfacial pattern morphologies in Hele-Shaw experiments
Vaibhav Raj Singh Parmar, Ranjini Bandyopadhyay
When a less viscous Newtonian fluid displaces an aging aqueous clay suspension in a confined space, a rich array of interfacial patterns emerges due to a predominantly viscous inst…
Using optical tweezer electrophoresis to investigate clay nanoplatelet adsorption on Latex microspheres in aqueous media
Vaibhav Raj Singh Parmar, Sayantan Chanda, Sri Vishnu Bharat Sivasubramaniam +1
The adsorption of charged clay nanoplatelets plays an important role in stabilizing emulsions by forming a barrier around the emulsion droplets and preventing coalescence. In this…
Manipulating crack formation in air-dried clay suspensions with tunable elasticity
Vaibhav Raj Singh Parmar, Ranjini Bandyopadhyay
Clay, the major ingredient of natural soils, is often used as a rheological modifier while formulating paints and coatings. When subjected to desiccation, colloidal clay suspension…
Interfacial instabilities in confined displacements involving non-Newtonian fluids
Vaibhav Raj Singh Parmar, Ranjini Bandyopadhyay
The growth of interfacial instabilities during fluid displacements can be driven by gradients in pressure, viscosity and surface tension, and by applying external fields. Since dis…
Correlating microscopic viscoelasticity and structure of an aging colloidal gel using active microrheology and cryogenic scanning electron microscopy
Rajkumar Biswas, Vaibhav Raj Singh Parmar, Anson G Thambi +1
Optical tweezers (OTs) can detect pico-Newton range forces operating on a colloidal particle trapped in a medium and have been successfully utilized to investigate complex systems…
Growth kinetics of interfacial patterns formed by the radial displacement of an aging viscoelastic suspension
Palak, Vaibhav Raj Singh Parmar, Ranjini Bandyopadhyay
When a soft glassy colloidal suspension is displaced by a Newtonian fluid in a radial Hele-Shaw geometry, the pattern morphology that develops at the interface is determined by the…
Emergence of transient reverse fingers during radial displacement of a shear-thickening fluid
Palak Palak, Vaibhav Raj Singh Parmar, Sayantan Chanda +1
A highly sheared dense aqueous suspension of granular cornstarch particles displays rich nonlinear rheology. We had previously demonstrated the growth and onset of interfacial inst…
Pattern selection in radial displacements of a confined aging viscoelastic fluid
Palak Palak, Vaibhav Raj Singh Parmar, Debasish Saha +1
Intricate fluid displacement patterns, arising from the unstable growth of interfacial perturbations, can be driven by fluid viscoelasticity and surface tension. A soft glassy susp…