An experimental study of a vacuum water-air ejector with a multichannel liquid-supply nozzle ensuring jet-pair collision

Experimental results are reported for a vacuum water-air ejector with a cylindrical mixing chamber and a multichannel water-supply nozzle in which the axes of the adjacent channels are inclined relative to each other at a small angle, resulting in pair collisions of the jets in the mixing chamber and a more intense jet fractionation. A comparison with results obtained for an ejector using a water-supply nozzle with parallel channels shows that the collision of jets significantly increases the efficiency of the ejector.