A simple zipper model is introduced, representing in a simplified way, eg, the folded DNA
double helix or hairpin structures in RNA. The double stranded hairpin is connected to a …

A key feature of three-dimensional fluid turbulence is the stretching and realignment of
vorticity by the action of the strain rate. It is shown in this paper, using the cumulant …

Bead-rod-spring models are the foundation of the kinetic theory of polymer solutions. We
derive the diffusion equation for the probability density function of the configuration of a …

Polymers in nonuniform flows undergo strong deformation, which in the presence of
persistent stretching can result in the coil-stretch transition. This phenomenon has been …

The creation of large spatial gradients in velocity by turbulent flows has important
implications for a number of micro-physical applications that are sensitive to the straining …

Particles, when subjected into a flow, may display preferred orientations and a variety of
deformations depending on their geometry and elasticity and the flow velocity field. Flows …