Rotating sprinklersare widely used in spray irrigation engineering due to the advantages of simplestructure and reliable operation. Researches on sprinklers have mainly focusedon the hydraulic performance characteristics， with neglect of jet breakupmechanism. However， the analysis of the jet breakup mechanism is one of thekeys to improving the hydraulic performance of sprinklers under low pressurewith uniform distribution of water， the structures of sprinklers can also beoptimized to enhance hydraulic performance. Therefore， understanding the jetbreakup mechanism based on research on the jet breakup process about thesprinklers is great significance in theory and of practical value.
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