Research on detonation and explosions

这个拟议的研究项目是我自1965年以来一直在NSERC支持下进行的研究的延续。我的兴趣主要是对爆炸、冲击波和爆炸现象的研究。最终目标是定量描述高速燃烧波的复杂传播机制和化学爆炸冲击波的非稳态传播。爆轰研究的关键问题是对胞体不稳定爆轰结构的认识。一旦获得了结构的知识，就可以开发经验相关性和分析理论来预测实际感兴趣的其他动态爆轰参数（例如，速度对边界条件的依赖，爆轰极限，直接起爆的临界能量，失效直径，从爆燃到爆轰过渡所需的条件等）。爆轰现象的定量知识对于危险设施的现实风险评估以及对化学工业、核反应堆、能源运输和储存设施中的意外爆炸的预防、抑制和缓解至关重要。爆炸研究也解决了加拿大的国防需求。爆轰燃烧的基本机制的研究也有助于理解和模拟高速湍流反应流动，这是流体力学中目前尚未得到很好理解的一个领域。

The proposed research program is a continuation of the research that I have been carrying out under NSERC support since 1965. My interest is primarily concerned with the investigation of the detonation, shock waves and explosion phenomenon. The ultimate goal is to achieve a quantitative description of the complex propagation mechanisms of high speed combustion waves and the non steady propagation of shock waves from chemical explosions. The key problems in detonation research is the understanding of the unstable cellular detonation structure. Once a knowledge of the structure is achieved, empirical correlations and analytical theories can be developed to predict the other dynamic detonation parameters of practical interest (e.g. dependence of velocity on the boundary conditions, detonation limits, critical energy for direct initiation, failure diameter, conditions required for the transition from deflagration to detonation, etc.). Quantitative knowledge of the detonation phenomenon is essential for realistic risk assessment of hazardous facilities, and to the prevention, suppression, and mitigation of accidental explosions in the chemical industries, nuclear reactors, energy transportation and storage facilities. Explosion research also addresses the defense needs of Canada. The investigation of the fundamental mechanisms of detonative combustion also contributes to the understanding and modeling of high speed turbulent reacting flows, an area of fluid mechanics which is currently not well understood.