scholarly journals Рост плотности и расхода тяжелого компонента при истечении разреженной газовой смеси в вакуум

2020 ◽  
Vol 46 (15) ◽  
pp. 3
Author(s):  
Н.Ю. Быков ◽  
В.В. Захаров
Keyword(s):  
Gas Dynamics ◽  
Dsmc Method ◽  
Disparate Mass

Gas dynamics of a rarefied mixture flowing from a chamber into vacuum is studied for the case of disparate-mass components. The modeling was fulfilled by the DSMC method. An increase of the heavier component density is observed in the vicinity of the chamber’s outlet. A significant impact of the lighter component on the jet dynamics consists in an increase of the heavier component flux and direction of heavier particles to the axis.

Supernovae and interstellar gas dynamics

1967 ◽  
Vol 31 ◽  
pp. 117-119
Author(s):  
F. D. Kahn ◽  
L. Woltjer
Keyword(s):  
Lower Limit ◽  
High Velocity ◽  
Gas Dynamics ◽  
Interstellar Cloud ◽  
Interstellar Gas ◽  
Random Motions ◽  
Relativistic Particles

The efficiency of the transfer of energy from supernovae into interstellar cloud motions is investigated. A lower limit of about 0·002 is obtained, but values near 0·01 are more likely. Taking all uncertainties in the theory and observations into account, the energy per supernova, in the form of relativistic particles or high-velocity matter, needed to maintain the random motions in the interstellar gas is estimated as 1051·4±1ergs.

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