Abstract

A numerical study of the gas dynamics of the processes of the outflow of a rarefied binary gas mixture with a large ratio of the species mass from the source into vacuum is carried out. The calculations are performed by the direct simulation Monte Carlo method. The effect of increasing the density of the heavy species in the vicinity of the outlet of the source is revealed . A significant effect of the light species on the gas dynamics of the mixture is shown, leading to an increase in flow rate and an enhancement of the effect of axial focusing of the heavy species.

中文翻译：

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稀有气体混合物向真空中的流出下重质物质的密度和流速的增加

摘要

进行了稀有二元气体混合物流出过程中气体动力学的数值研究，稀有二元气体混合物中有很大比例的物质从源头流向真空。通过直接模拟蒙特卡洛方法进行计算。揭示了增加源头出口附近重物种密度的效果。显示了轻物质对混合物的气体动力学的显着影响，从而导致流速增加和重物质轴向聚焦作用的增强。