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Numerical modeling and simulation of supersonic flows in propulsion systems by open-source solvers

Hoste, Jimmy John O.E. and Casseau, Vincent and Fossati, Marco and Taylor, Ian J. and Gollan, Rowan J. (2017) Numerical modeling and simulation of supersonic flows in propulsion systems by open-source solvers. In: 21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017. American Institute of Aeronautics and Astronautics Inc, AIAA. ISBN 9781624104633

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Two open-source solvers, Eilmer and hyFoam, are here considered for their performance in simulating high-speed flows in different flow conditions and geometric configurations typical of propulsive systems at supersonic speeds. The goal is to identify the open-source platform providing the best compromise between accuracy, flexibility and computational cost to eventually simulate the flow fields inside ramjet and scramjet engines. The differences in terms of discretization and solution methods of the selected solvers are discussed in terms of their impact on solution accuracy and computational efficiency and in view of the aerothermodynamic analysis and design of future trans-atmospheric propulsive systems. In this work steady state problems are considered. Numerical results of two scramjet type engines demonstrated a similar predictive capability of both codes in non-reacting conditions. These results highlight their potential to be considered for further characterization of overall engine performance.