12 citations · 18 across the 4 of their papers we have counts for
4 papers
Escape of a lamb to safe haven in pursuit by a lion under restarts
R. K. Singh, T. Sandev, Sadhana Singh
We study the escape behavior of a lamb to safe haven pursued by a hungry lion. Identifying the system with a pair of vicious Brownian walkers we evaluate the probability density fu…
Capture of a diffusing lamb by a diffusing lion when both return home
R. K. Singh, Sadhana Singh
A diffusing lion pursues a diffusing lamb when both of them are allowed to get back to their homes intermittently. Identifying the system with a pair of vicious random walkers, we…
Transport and tumbling of polymers in viscoelastic shear flow
Sadhana Singh, R. K. Singh, Sanjay Kumar
Polymers in shear flow are ubiquitous and we study their motion in a viscoelastic fluid under shear. Employing dumbbells as representative, we find that the center of mass motion f…
Dynamics of a polymer under multi-gradient fields
Sadhana Singh, Sanjay Kumar
Effects of multi-gradient fields on the transport of a polymer chain have been investigated by using generalized Langevin dynamics simulations. We observe that the natural frequenc…