Features of Ice-forming Aerosol Generation during the Combustion of Pyrotechnic Composition in the Path of the De Laval Nozzle

Abstract— In generators traditionally used for weather modification, combustion products are released either directly through the holes in the body (seeding cartridges, aircraft aerosol generators) or through the nozzle blocks of antihail rockets. At the same time, under certain conditions, a secondary ignition of combustion products is possible with an almost complete burnout of active substances and a significant (by several orders of magnitude) decrease in the ice-forming activity of the generated aerosol. The paper discusses a possibility of a significant change both in the physical and chemical properties of the ice-forming aerosol in the organization of the release of combustion products through the path of the de Laval nozzle operating in a supersonic mode.