Мalkov V. М., Еmelyanovа А. V.
Abstract: This article deals with multiple-nozzle ejectors having several nozzles arranged around the mixing chamber shell instead of one central nozzle, thus intensifying the mixing process of ejector and ejected flows. The efficiency of the multi-nozzle ejector is significantly increased compared to the traditional ejector design due to improved flow characteristics. A detailed analysis of the influence of all geometric parameters of the working channel on the ejector characteristics has been performed. The correlation between the geometric parameters of the flow channel of the multi-nozzle ejector and its launch, drag and load characteristics is revealed. Guidelines are issued for the selection of design solutions when developing a multi-nozzle ejector for various installations.
Keywords: multi-nozzle ejector, pressure recovery system, compression ratio, ejection ratio, ejector start pressure, stall pressure, nozzle, mixing chamber.
For citation: Мalkov V. М., Еmelyanovа А. V. Efficient multi-nozzle ejector: the impact of working channel configuration on its performance. Aerospace Engineering and Technology. 2023. Vol. 1. No. 1, pp. 131–148.