Simulation of forming a shock wave in the shock tu

Authors: SV Kulikov

Publish Date: 2009

Volume: , Issue: , Pages: 1503-1508

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Abstract

Monte Carlo nonstationary method of statistical simulation another name DSMC was used in calculations Simulation was carried out in the onedimensional coordinate space and in the threedimensional velocity space Molecules were presented as hard spheres without internal structure At an initial moment the highpressure chamber HPC of a shock tube was filled up by a gas with the molecular mass μ equal to μ of H2 And the lowpressure channel LPC was filled up by the mixture of gases with μ of each gas equal to μ of Xe O2 He and H2 with the ratio of concentrations 11016920 respectively At an initial moment temperatures of gases in HPC and LPC were set equal but the ratio of pressures was set to 100 The simulation started after removing a diaphragm between this parts Parallel calculations were carried out by means of a multiprocessor computer Domain decompositions of a simulation region was performed And 175 processors were used It was found that the size of the diffuseness zone for the end of a shockheated gas from the side of the HPC didn’t change during the time of simulation

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