Ignition of a composite propellant by a hot particle under conditions of a nonideal thermal contact

被引：7

作者：

Glushkov, D. O. ^{[1
]}

Kuznetsov, G. V. ^{[1
]}

Strizhak, P. A. ^{[1
]}

机构：

[1] Natl Res Tomsk Polytech Univ, Tomsk, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2015年 / 9卷 / 04期

关键词：

composite solid propellant; surface roughness; local energy source; heat conduction; radiation; exothermic reaction; ignition; mathematical modeling; LIQUID;

D O I：

10.1134/S1990793115040053

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A mathematical modeling of the solid-phase ignition of a condensed material by a single diskshaped hot metal particle under conditions of a nonideal thermal contact between the particle and the propellant due to the natural surface roughness of the latter is performed. The ranges of values of the initial temperature of the local energy source and of the parameter characterizing the propellant surface roughness at which radiative heat transfer across the gas gap between the propellant and particle significantly (up to 25%) influences the ignition delay time, the main integrated characteristic of the process, are determined from numerical simulations.

引用

页码：631 / 636

页数：6

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