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Combustion, Explosion and Shock Waves

2023 year, number 4

Ignition and Combustion of Synthetic High Molecular Hydrocarbons in High Enthalpy Airflow

L. S. Yanovskii1,2,3,4, A. Yu. Varaksin1, K. Yu. Aref'ev1, V. M. Ezhov1,2, S. I. Martynenko5, N. A. Chervonnaya2
1Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
2Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, Russia
3Russian Academy of Rocket and Artillery Sciences, Moscow, Russia
4Moscow Aviation Institute (National Research University), Moscow, Russia
5Bauman Moscow State Technical University, Moscow, Russia
Keywords: ignition induction period, synthetic hydrocarbon, combustion completeness, mathematical model, shock tube

Abstract

This paper presents experimental data on the ignition induction period of synthetic hydrocarbons at various temperatures and pressures obtained using a shock tube. The influence of the ignition induction period on the combustion completeness of hydrocarbons in high-enthalpy flows for diffusion-kinetic regimes was determined based on the experimental results. An integral mathematical model is presented that takes into account the influence of the kinetic factors of ignition and combustion on the completeness of physicochemical processes in the air flow. The results of calculations of the combustion completeness of synthetic hydrocarbons in flows with different parameters.