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Hypersonic simulations using open-source CFD and DSMC solvers

Casseau, V. and Scanlon, T. J. and John, B. and Emerson, D. R. and Brown, R. E. (2016) Hypersonic simulations using open-source CFD and DSMC solvers. In: Proceedings of the 30th International Symposium on Rarefied Gas Dynamics. AIP Conference Proceedings, 1786 . American Institute of Physics, Melville, N.Y.. ISBN 9780735414488

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    Hypersonic hybrid hydrodynamic-molecular gas flow solvers are required to satisfy the two essential requirements of any high-speed reacting code, these being physical accuracy and computational efficiency. The James Weir Fluids Laboratory at the University of Strathclyde is currently developing an open-source hybrid code which will eventually reconcile the direct simulation Monte-Carlo method, making use of the OpenFOAM application called dsmcFoam, and the newly coded open-source two-temperature computational fluid dynamics solver named hy2Foam. In conjunction with employing the CVDV chemistry-vibration model in hy2Foam, novel use is made of the QK rates in a CFD solver. In this paper, further testing is performed, in particular with the CFD solver, to ensure its efficacy before considering more advanced test cases. The hy2Foam and dsmcFoam codes have shown to compare reasonably well, thus providing a useful basis for other codes to compare against.