Problems and prospects of investigating the formation and evolution of agglomerates by the sampling method

Problems related to the interpretation of information obtained from an analysis of collected particles of condensed combustion products of aluminized propellants are considered. It is shown that the difficulties that arise are due to three main factors: the complex statistical character of the combustion of heterogeneous propellants, which results in formation of agglomerates with a substantially polydisperse distribution in size and different (even for identical size) structure, the features of burnout of the agglomerates related to the accumulation of oxide on the burning particle, and the specific character of the motion of burning agglomerates in the gas flow. An experimental approach is proposed that makes it possible to eliminate the polydispersity of the agglomerates and uncertainty in the parameters of the gaseous products flowing away from the burning surface.