Simulink Model of the Ares I Upper Stage Main Propulsion System | Zendy

Bradley Burchett | Zendy

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Simulink Model of the Ares I Upper Stage Main Propulsion System

Author(s) -

Bradley Burchett

Publication year - 2008

Publication title -

aiaa modeling and simulation technologies conference and exhibit

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2008-6544

Subject(s) - propulsion , computer science , stage (stratigraphy) , aerospace engineering , systems engineering , engineering , geology , paleontology

A numerical model of the Ares I upper stage main propulsion system is formulated based on first principles. Equation's are written as non-linear ordinary differential equations. The GASP fortran code is used to compute thermophysical properties of the working fluids. Complicated algebraic constraints are numerically solved. The model is implemented in Simulink and provides a rudimentary simulation of the time history of important pressures and temperatures during re-pressurization, boost and upper stage firing. The model is validated against an existing reliable code, and typical results are shown.

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