Simulation of high-altitude rocket engine jet with vibrational relaxation

Propulsion and Power Plants


Molchanov A. M.1*, Bykov L. V.2**, Donskikh V. V.1***

1. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
2. ,



The work is devoted to the study of energy exchange and relaxation processes occurring in the gas jet exhausting from a model rocket engine. It is shown that at high altitudes, temperatures of different vibrational energy modes differ significantly from each other, as well as from the translational-rotational temperature. Vibrational temperature fields depend strongly on the spontaneous radiative deactivation. The paper presents the results of calculations obtained by using various data on the kinetics.


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