Modeling and Analysis of a LOX/Ethanol Liquid Rocket Engine

Fábio Antônio da Silva Mota, José Nivaldo Hinckel, Evandro Marconi Rocco, Hanfried Schlingloff

Abstract


This work studies the performance and dry mass of the under development LOX/Ethanol L75 liquid rocket engine. To this end, an object-oriented program written in C++ was developed. The program is intended to be versatile and easily extensible in order to analyze different configurations of liquid rocket engines. The UML (Unified Modeling Language) tool is used to model the architecture of the codes. UML diagrams help to visualize the code structure and the communication between objects, enabling a high degree of abstraction. The cryogenics Vulcain and HM7B engines power cycles along with the staged-combustion SSME engine perform the verification of the codes. Finally, the influence of changes in design parameters on the performance and dry mass of the L75 rocket engine is analyzed.

Keywords


Liquid rocket engines; Ethanol; Modeling

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