STUDY THE EJECTOR’S PERFORMANCE CHANGING WITH IT’S GEOMETRIC PARAMETERS

Abstract

Hydrokinetics software FLUENT is adopted to perform numerical simulations on the ejector flow field, the entrainment ratio of ejector is analyzed by changing the diameter of the primary nozzle and the constant area mixing chamber .The result shows that the primary nozzle and constant area mixing chamber have great influence on the performance of ejector, and existing optimal throat diameter of primary nozzle and diameter of constant area mixing chamber make the entrainment ratio reach maximum, it has great significance to guidance the design of ejector.