STATISTICAL-MODEL OF THE THERMAL IGNITION OF A DISTRIBUTED SYSTEM

被引：6

作者：

FEDOTOV, SP

机构：

[1] Department of Mathematical Physics, Ural State University, Ekaterinburg

来源：

COMBUSTION AND FLAME | 1992年 / 91卷 / 01期

关键词：

D O I：

10.1016/0010-2180(92)90127-B

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present work is concerned with the instability of combustible mixtures against finite-amplitude nucleus-like fluctuations of temperature that lead to a stochastic thermal ignition. The phenomenon is associated with the presence of a potential barrier that must be crossed by nuclei to initiate the stochastic ignition, which tums out to be possible even under the deterministic explosion limit given by the well-known Frank-Kamenetskii model. A stochastic analysis of such phenomena has been given using a functional Fokker-Planck equation. The following discussion of the ignition is restricted to a one-dimensional case when the consumption of reactant is not taken into account. The results obtained here may be applied only to weak fluctuations.

引用

页码：65 / 70

页数：6

共 16 条

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