Simulation of high-altitude rocket engine jet with vibrational relaxation

Аuthors

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

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

*e-mail: alexmol_2000@mail.ru
**e-mail: bykovlv@mai.ru
***e-mail: vic@mai.ru

Abstract

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.

Keywords:

high-altitude rocket engine jets, translational, rotational and vibrational molecular energy, vibrational relaxation, non-equilibrium processes