Monte Carlo Simulation of Free Jet Flow from a Slit. Revision 1

摘要

The expansion of a free jet from a slit source into a vacuum has been simulated using the Monte Carlo procedures developed by Bird. The calculations were made for hard-sphere molecules ( gamma = 5/3) at several densities to examine the departures from translational equilibrium in the flow field. Results are compared with the predictions of a method-of-characteristics calculation for continuum inviscid flow. The variations of the three components of the kinetic temperature are similar to those of a cylindrical source expansion. Molecular velocities perpendicular to the flow are found to depart from Maxwellian distributions at large distances from the slit. 14 refs., 11 figs. (ERA citation 11:037014)