Effect of the outlet type and its relative position on energy characteristics and design diameter of the inducer pump

Results of numerical simulation of the inducer pump with axial and radial outlet are presented for the different axial position in the outlet. Influence of the inducer and the outlet position on hydraulic efficiency, pressure drop, power and design diameter with a change in flow rate is shown. Relevance of the work is caused by the lack of a unified theory for calculating freestanding and upstream inducer wheels in the aviation and space industries. An attempt was made to examine both freestanding and upstream inducer wheels and to show the effect of different wheel positioning on energy characteristics of one of the aircraft inducers. The study demonstrated that the radial outlet and the inducer position from the outlet had significant impact not only on the calculated wheel diameter and its energy characteristics, but also on the maximum flow rate.