气相爆轰动力学特征研究进展

爆轰胞格结构尺寸、爆轰极限、爆轰临界直径和直接起爆形成爆轰的临界能量的研究,是气相爆轰物理的基础,也是确定气相爆轰动力学特征的依据,更是控制事故发生、发展的重要指标.通过对其开展研究能够深入描述气相爆轰形成机理、状态量化以及传播规律,从而将有利于推动气相爆轰物理研究从宏观向微观发展.此外,通过开展气相爆轰动力学特征的系统研究,对于化工、石化、煤炭等行业爆炸事故预防与防护具有直接指导意义,也是工业爆炸安全主要支撑基础.本文主要综述了国内外对气相爆轰动力学特征的研究进展,探讨了气相爆轰研究的方向和发展趋势.

Research progress on the dynamic characteristics of gaseous detonation

We review the recent research progress on dynamic characteristics of gaseous detonation,i.e., cellular structure of detonation, detonability limit, critical tube diameter and critical energy for direct detonation initiation, those characteristics are the fundamental knowledge of gaseous detonation physics research, as well as on the basis of which the dynamic behavior of detonation is determined. The investigations on the gaseous detonation physics have important academic significance and application background, for example, the understanding of the characteristics of gaseous detonation can supplement gaseous detonation theory and further promote the development of detonation study from macroscopic into microscopic. From the application aspect consideration, better comprehension of the dynamics of gaseous detonation and the critical conditions delineating initiation and failure of a detonation is of great significance to safety protection research in gas explosion accident of coal mine and combustible gas leaking of the chemical plant. In this review, we focus on the recent research progress on the dynamic characteristics of gaseous detonation, we also point out areas where our understanding is still far from being complete and contains some suggestions of ways in which progress might be made in the future.