Evolution of nonstationary detonation wave in air suspensions of combustible droplets is considered. The gaseous suspension of fuel droplets is described as the two-phase medium. Continuous fields of averaged values describing of mass density, momentum, velocity of both phases are introduced. Then, in terms of averaged quantities the equations of motion are formulated. Strong initiation regime of the detonation process is considered. The initiating shock wave is assumed to arise as a result of explosion of condensed HE charge.The four-step model of gas-droplet interactions is considered. Mass loss due to layer stripping is described by the Engel formula. Evaporation of shattered micro-droplets is modelled in Nusselt approach. The presence of secondary droplets phase arising in the process of primary droplet fragmentation is accounted. The reaction of the gaseous fuel with oxygen from air is described by an overall kinetic scheme.The detailed analysis of the post-shock zone is performed. The influence of the mechanisms of inter-phase coupling: droplets fragmentation and evaporation, energy liberation in fuel combustion upon the shock and detonation wave structure are examined. The placement of the sonic surface, u + c = D is tracking. The resulting split of the relative position of the sonic surface and the end of reaction zone, against the leading shock front is discussed as the example of non-ideal detonation features.
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机译：考虑了可燃液滴空气悬浮液中非平稳爆震波的演变。燃料液滴的气态悬浮被描述为两相介质。引入连续的平均值区域，描述了两个阶段的质量密度，动量和速度。然后，根据平均数量制定运动方程。考虑了爆炸过程的强起爆机制。假定起始的冲击波是由于凝结的HE电荷爆炸而产生的。
考虑了液滴相互作用的四步模型。恩格尔公式描述了由于层剥离引起的质量损失。破碎的微滴的蒸发采用Nusselt方法建模。考虑到在初级液滴破碎过程中产生的次级液滴相的存在。气态燃料与来自空气的氧气的反应由整体动力学方案描述。
进行了震后区域的详细分析。研究了相间耦合机制的影响：液滴碎裂和蒸发，燃料燃烧中的能量释放对冲击波和爆震波结构的影响。声表面的位置，u + c = D正在跟踪。讨论了声表面和反应区末端相对于前冲激波前沿的相对位置的相对分裂，以此作为非理想爆轰特征的例子。
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