Preliminary Design Method of a Turbopump Feed System for Liquid Rocket Engine Expander Cycle

Abstract The present research effort deals with simplified theoretical models for the preliminary design and performances assessment of centrifugal pumps for liquid rocket propulsion. These models have been developed within the Concurrent Design Facility, under development at the Italian Aerospace Research Centre (CIRA), in the framework of the HYPROB program. In particular, this work is aimed at developing a theoretical model, via the implementation of a MatLab code, capable to predict the geometry and performance of centrifugal turbopumps, thus providing useful indications for the preliminary design of the turbopump feed system.