| Abstract: | Based on numerical Monte Carlo simulation, the collision of plane-parallel supersonic flows in vacuum and ambient space is
studied. The study of the transonic zone of a plane source instantaneously switched on in vacuum made it possible to establish
the regular features of the flow parameters in the critical cross section and the validity of using gas-dynamic dependences
obtained in the continuum approach for simulating gas exhaustion. Evolution of the structure of a compressed shock layer arising
in the region of flow collision is studied. It is found that a collision of flows in the ambient space leads to a more significant
increase in temperature in the compressed layer than in the case of a collision in vacuum.
Kutateladze Institute of Thermal Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk 630090. Translated from
Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 40, No. 4, pp. 44–50, July–August, 1999. |
