Solid-phase ignition of a composite propellant by a hot particle under free-convection heat sink into the environment

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Abstract

A mathematical model of the solid-phase ignition of a structurally inhomogeneous metallized composite propellant by an incandescent small particle in the form of a cylindrical disk with allowance for free-convection heat sink into the environment is developed. A numerical study of the ignition delay time, the main integral characteristics of the process, is performed. The calculation results are compared to experimental data on the ignition of model propellant compositions based on ammonium perchlorate, butyl rubber, and ASD-4 aluminum powder.

Original languageEnglish
Pages (from-to)196-204
Number of pages9
JournalRussian Journal of Physical Chemistry B
Volume8
Issue number2
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint

composite propellants
Composite propellants
heat sinks
Heat sinks
Natural convection
free convection
ignition
Ignition
solid phases
ammonium perchlorates
propellants
Propellants
allowances
Aluminum
rubber
Powders
mathematical models
Time delay
time lag
Mathematical models

Keywords

  • convective heat transfer
  • ignition
  • local energy source
  • metallized composite propellant
  • numerical simulation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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abstract = "A mathematical model of the solid-phase ignition of a structurally inhomogeneous metallized composite propellant by an incandescent small particle in the form of a cylindrical disk with allowance for free-convection heat sink into the environment is developed. A numerical study of the ignition delay time, the main integral characteristics of the process, is performed. The calculation results are compared to experimental data on the ignition of model propellant compositions based on ammonium perchlorate, butyl rubber, and ASD-4 aluminum powder.",
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AU - Kuznetsov, G. V.

AU - Strizhak, P. A.

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AB - A mathematical model of the solid-phase ignition of a structurally inhomogeneous metallized composite propellant by an incandescent small particle in the form of a cylindrical disk with allowance for free-convection heat sink into the environment is developed. A numerical study of the ignition delay time, the main integral characteristics of the process, is performed. The calculation results are compared to experimental data on the ignition of model propellant compositions based on ammonium perchlorate, butyl rubber, and ASD-4 aluminum powder.

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KW - local energy source

KW - metallized composite propellant

KW - numerical simulation

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