局部热点在无气混合气中的起燃作用

IF 0.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY International Journal of Self-Propagating High-Temperature Synthesis Pub Date : 2023-09-05 DOI:10.3103/S1061386223030020

A. P. Aldushin, P. M. Krishenik, S. A. Rogachev

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引用次数: 0

摘要

建立了无限质量冷凝混合物有限高温点起燃的数学模型。结果表明，与样品临界直径(燃烧因热损失而熄灭)不同，大体积无气体混合物起始时热点的临界半径仅由其物理化学特性(Zel’dovich数)决定。

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Combustion Initiation in Gas-Free Mixture by Local Hot Spot

The combustion initiation of condensed mixture with unlimited mass by limited high-temperature spot was mathematically modelled. It was shown that in contrast to the sample critical diameter, at which the combustion dies out due to heat loss, the critical radius of the hot spot upon initiation of large-volume gas-free mixture is determined only by its physicochemical characteristics (Zel’dovich number).

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来源期刊

International Journal of Self-Propagating High-Temperature Synthesis MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

33.30%

发文量

期刊介绍： International Journal of Self-Propagating High-Temperature Synthesis is an international journal covering a wide range of topics concerned with self-propagating high-temperature synthesis (SHS), the process for the production of advanced materials based on solid-state combustion utilizing internally generated chemical energy. Subjects range from the fundamentals of SHS processes, chemistry and technology of SHS products and advanced materials to problems concerned with related fields, such as the kinetics and thermodynamics of high-temperature chemical reactions, combustion theory, macroscopic kinetics of nonisothermic processes, etc. The journal is intended to provide a wide-ranging exchange of research results and a better understanding of developmental and innovative trends in SHS science and applications.