Title: Flow properties of Liquids and Glasses under Steady Shear
Event Date: 
Friday, 21 April 2017 - 2:30pm
Abstract:
A compressible Lennard-Jones fluid, confined in a two dimensional nanochannel, is equilibrated in the fluid phase close to the triple point at which gas, liquid and solid phases coexist and is subjected to a steady shear in Couette geometry using molecular dynamics simulations. I will talk about the flow properties of such a system in first part of my talk. In the second part, I will present the results related to the nonlinear rheology of a system of particles interacting via a hard- sphere potential plus a short-ranged attraction. The dynamics of the system is investigated using isotropic-shear approximation within integration through transients approach combined with the mode coupling theory of glass transition. Such a system displays two separate glasses, attractive and repulsive, connected with glass-glass transitions and higher-order glass-transition singularities. We thus compare rheological properties of the system in different regimes.
Venue: 
Room 202 (Seminar room), Physics Department
IIT Bombay, Powai, Mumbai