MATHEMATICAL MODELING OF THE METALLIZED SOLID PROPELLANT IGNITION BY A HIGH-TEMPERATURE CONVECTIVE FLOW

Autor:	Krainov A.Yu., V A Poryazov
Rok vydání:	2020
Předmět:	Propellant Materials science Convective flow Mechanical Engineering General Mathematics Computational Mechanics Mechanics law.invention Physics::Fluid Dynamics Ignition system Physics::Plasma Physics Mechanics of Materials law Physics::Chemical Physics
Zdroj:	Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika. :126-140
ISSN:	2311-2255 1998-8621
DOI:	10.17223/19988621/68/12
Popis:	This paper presents a mathematical model and a methodology to calculate stationary combustion of a metallized solid propellant with aluminum additives ignited by a hightemperature convective flow. The study considers the ignition of a semi-infinite slab of the metallized solid propellant which is blown over by an unlimited high-temperature flow. A boundary-layer approximation is used to develop the ignition model. The high-temperature blowing effect is taken into account in the model by means of turbulent heat and mass transfer. The paper provides a numerical and theoretical analysis on the impact of the velocity and temperature of the convective flow on the ignition time delay and the stationary combustion mode establishment. The analysis shows that the proposed approach allows calculating the time of the ignition delay and stationary combustion mode establishment for the metallized solid propellant. Moreover the ignition delay and the period of the stationary combustion mode establishment are found to be controlled by both the velocity and temperature of the convective flow.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b4c8230359ad9aeedf8e0b567e2e8ec https://doi.org/10.17223/19988621/68/12 Zobrazit plný text záznamu