NUMERICAL SOLUTION OF GAS-DYNAMIC EQUATIONS WITH BOUNDARY CONDITIONS FOR REFLECTION AND RECONDENSATION

摘要

Gas-dynamic equations, for gases which are released from a pulsed nozzle or for particles sputtered from solids with intense laser pulses, are solved by using the numerical method first proposed by Godunov. Boundary conditions for reflection and recondensation, at the emitting surface, are included into the Godunov scheme and the resulting numerical results for density and flow velocity compare very favourably to the available analytical solutions. The adopted numerical method, with boundary conditions for reflection and recondensation included, opens a way for solving gas-dynamic problems with specified boundary conditions. [References: 13]