Kelvin–Helmholtz instability in strongly coupled dusty plasma with rotational shear flows and tracer transport

Kelvin-Helmholtz (KH) instability plays a significant role in transport and mixing properties of any medium. In this paper, we numerically explore for two-dimensional strongly coupled dusty plasma with rotational shear flows. We study medium using generalized hydrodynamic fluid model which treats it as viscoelastic fluid. consider the specific cases rotating vorticity abrupt radial profiles rotation. particular: single-circulation, multi-circulation shell have been chosen. observe KH vortices at each circular interface between two relative flows along pair ingoing outgoing wavefronts transverse waves. Our studies show that due to interplay waves medium, behaviour are much better than inviscid fluids. interests substantiating behaviour, is extended include Lagrangian tracer particles. The numerical dispersion these particles flow provides an estimate diffusion such present preliminary observations tracers distribution (cluster formation) their (mean square displacement) across