70 citations · 376 across the 13 of their papers we have counts for
13 papers
Linking molecular timescales to linear viscoelastic response in dilute and semidilute unentangled wormlike micelle solutions
Avishek Kumar, Rico F Tabor, P. Sunthar +1
Unentangled wormlike micelle solutions relax stress through a dynamic interplay of reversible scission and intrachain relaxation involving a hierarchy of molecular timescales whose…
Linear Viscoelasticity of Semidilute Unentangled Flexible Polymer Solutions
Amit Varakhedkar, P. Sunthar, J. Ravi Prakash
The linear viscoelastic response of flexible polymer solutions in the dilute and semidilute unentangled regimes is investigated using Brownian dynamics simulations. The relaxation…
Universal scaling of the diffusivity of dendrimers in a semidilute solution of linear polymers
Silpa Mariya, Jeremy J. Barr, P. Sunthar +1
The static and dynamic properties of dendrimers in semidilute solutions of linear chains of comparable size are investigated using Brownian dynamics simulations. The radius of gyra…
Uniaxial extensional viscosity of semidilute DNA solutions
Sharadwata Pan, Duc At Nguyen, P. Sunthar +2
The extensional rheology of polymeric liquids has been extensively examined through experiments and theoretical predictions. However, a systematic study of the extensional rheology…
Universal dynamics of dilute and semidilute solutions of flexible linear polymers
J. Ravi Prakash
Experimental observations and computer simulations have recently revealed universal aspects of polymer solution behaviour that were previously unknown. This progress has been made…
Shear thinning in dilute and semidilute solutions of polystyrene and DNA
Sharadwata Pan, Duc At Nguyen, B. Duenweg +3
The viscosity of dilute and semidilute unentangled DNA solutions, in steady simple shear flow, has been measured across a range of temperatures and concentrations. For polystyrene…
Direct observation of DNA dynamics in semi-dilute solutions in extensional flow
Kai-Wen Hsiao, Chandi Samsal, J. Ravi Prakash +1
The dynamic behavior of semi-dilute polymer solutions is governed by an interplay between solvent quality, concentration, molecular weight, and flow type. Semi-dilute solutions are…
Parameter-free prediction of DNA dynamics in planar extensional flow of semidilute solutions
Chandi Sasmal, Kai-Wen Hsiao, Charles M. Schroeder +1
The dynamics of individual DNA molecules in semidilute solutions undergoing planar extensional flow is simulated using a multi-particle Brownian dynamics algorithm, which incorpora…
Viscoelastic fluid flow in a 2D channel bounded above by a deformable finite thickness elastic wall
Debadi Chakraborty, J. Ravi Prakash
The steady flow of three viscoelastic fluids (Oldroyd-B, FENE-P, and Owens model for blood) in a two-dimensional channel, partly bound by a deformable, finite thickness neo-Hookean…
Brownian dynamics simulations of planar mixed flows of polymer solutions at finite concentrations
Aashish Jain, Chandi Sasmal, Remco Hartkamp +2
Periodic boundary conditions for planar mixed flows are implemented in the context of a multi-chain Brownian dynamics simulation algorithm. The effect of shear rate , and ex…
The viscosity radius in dilute polymer solutions: Universal behaviour from DNA rheology and Brownian dynamics simulations
Sharadwata Pan, D. Ahirwal, Duc At Nguyen +3
The swelling of the viscosity radius, , and the universal viscosity ratio, , have been determined experimentally for linear DNA molecules in dilute solutions with exce…
Fluid-Structure Interaction in Deformable Microchannels
Debadi Chakraborty, J. Ravi Prakash, Leslie Yeo +1
A microfluidic device is constructed from PDMS with a single channel having a short section that is a thin flexible membrane, in order to investigate the complex fluid-structure in…
Universal solvent quality crossover of the zero shear rate viscosity of semidilute DNA solutions
Sharadwata Pan, Duc At Nguyen, T. Sridhar +2
The scaling behaviour of the zero shear rate viscosity of semidilute unentangled DNA solutions, in the double crossover regime driven by temperature and concentration, is mapped ou…