气相规则胞格爆轰波起爆与传播统一框架的几个关键基础问题研究

本文综述并分析了气相规则胞格爆轰在起爆与传播方面的研究进展，结合高温气体动力学国家重点实验室在爆轰物理方面的研究工作，进一步研究了气相规则胞格爆轰波起爆的几个关键基础问题．这些基础问题由一个机制：非线性波传播／化学反应过程相互作用机制；两个基本过程：热点起爆和化学反应带加速过程；三个关键物理状态：平衡传播状态、临界起爆状态和稳定胞格尺度等六个关键要素组成，是统一框架的主要基本元素．通过六个典型的物理算例，本文研究了这些关键物理要素的内在机制、表现特征及其客观存在性．应用气相规则爆轰起爆与传播的统一框架，我们成功地解释了目前已有的经典爆轰理论、应用CFD技术获得的多维爆轰波计算结果和实验研究观察到的胞格爆轰图像的合理性及其依据的关键物理要素．

Research on some fundamental problems of the universal framework for regular gaseous detonation initiation and propagation

Research progress on the regular gaseous detonation initiation and propagation is reviewed, and some fundamental problems are studied based on the recent work on the detonation physics in state key lab of high temperature gas dynamics. These problems constituting the universal framework consist of six issues： one mechanism that is the interaction of nonlinear wave propagation and chemical-reaction, INWPCR; two basic procedures, which are the hot pot ignition and the chemical reaction zone acceleration; three key physical states, which are the equilibrium propagation state, the critical initiation state and the stable cell size. These six issues are investigated through six test cases to ascertain their physical mechanisms, dynamic characteristics, and the existence. Then, the universal framework is applied to explain the recent classic detonation theories, multi-dimensional numerical results, and experimental observations on cellular detonation. Reasonable and universal conclusions can be reached on the base of the universal framework, which provides the physical insight for understanding regular gaseous detonation initiation and propagation.