关键词: 喷注器;液体喷射;液体雾化

Abstract: Movent of a conic liquid film in a restricted spase is studied in this paper. The film is produced by a centrifugal nozzle and impinged by high speed gas stream.Based on the theory of aerodynamics,some theoretical formulas for liquid film movement are established, a criterion of breaking up the moving liquid film is proposed and a formula for calculating the size of droplet formey by disintegration of the liquid film is presented. Calculation results can be used as a reference for atomizer design.

Key words: Ejector;Liquid injection;Liquid atomization