Comment on "reversing the perturbation in nonequilibrium molecular dynamics: an easy way to calculate the shear viscosity of fluids".

Müller-Plathe [Phys. Rev. E 59, 4894 (1999)] gives a velocity exchange method that creates a shear momentum flux.

Droplet formation by rapid expansion of a liquid.

Molecular dynamics of two- and three-dimensional liquids undergoing a homogeneous adiabatic expansion provides a direct numerical simulation of the atomization process. The Lennard-Jones potential is used with different force cutoff distances; the cluster distributions do not depend strongly on the cutoff parameter. Expansion rates, scaled by the natural molecular time unit (about a picosecond), are investigated from unity down to 0.