Theoretical substantiation of the design parameters of the rotating reflective cone of the sprinkler nozzle, providing increased wind resistance of rain

The article deals with the theoretical question of substantiating the design parameters of a rotating deflector cone providing the creation of a rain cloud with increased wind resistance. The optimal geometric parameters of the rotating deflector cone are determined. The results of laboratory studies are presented, during which the effect of changing the angle of departure of a raindrop descending from a rotating deflector cone on the amount of rain loss on evaporation and wind drift, as well as the irrigation radius, was investigated. It has been found that the use of sprinkler nozzles with a rotating deflector cone can increase the wind resistance of the rain created while maintaining the irrigation radius and reduce water loss by evaporation up to 9.8% compared with rain nozzles with a non-rotating smooth deflector cone.