ABSTRACT

The physical and mathematical models describing the detonation processes in hydrogen-air mixture in one- and two-dimensional formulation based on the detailed and reduced kinetics models were proposed. Using these models the interaction of a plane and cellular detonation waves with a semi-infinite cloud of inert particles was calculated. Types of detonation flows in the gas suspension in both detailed and reduced kinetics calculations were revealed. Volume concentrations and corresponding particle diameters resulting to detonation wave failure were obtained. Comparison of one-dimensional and two-dimensional approaches showed a quantitative similarity of the integral dependences of the normalized detonation wave velocity and the values of volume fraction and particle diameters at which detonation failure is occurs.

摘要

在详细和简化的动力学模型的基础上，提出了以一维和二维形式描述氢-空气混合物中爆轰过程的物理和数学模型。使用这些模型，计算了平面和细胞爆轰波与惰性粒子的半无限云的相互作用。在详细的和简化的动力学计算中，揭示了气体悬浮液中的爆轰流类型。获得了导致爆炸波破坏的体积浓度和相应的粒径。一维方法和二维方法的比较表明，归一化爆炸波速度与发生爆炸失败的体积分数和粒径值的积分依赖性在数量上相似。