A two-temperature open-source CFD model for hypersonic reacting flows, part two : multi-dimensional analysis

Casseau, Vincent and Espinoza, Daniel E. R. and Scanlon, Thomas J. and Brown, Richard E. (2016) A two-temperature open-source CFD model for hypersonic reacting flows, part two : multi-dimensional analysis. Aerospace, 3 (4). ISSN 2052-451X

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    Abstract

    hy2Foam is a newly-coded open-source two-temperature computational fluid dynamics (CFD) solver that has previously been validated for zero-dimensional test cases. It aims at (1) giving open-source access to a state-of-the-art hypersonic CFD solver to students and researchers; and (2) providing a foundation for a future hybrid CFD-DSMC (direct simulation Monte Carlo) code within the OpenFOAM framework. This paper focuses on the multi-dimensional verification of hy2Foam and firstly describes the different models implemented. In conjunction with employing the coupled vibration-dissociation-vibration (CVDV) chemistry–vibration model, novel use is made of the quantum-kinetic (QK) rates in a CFD solver. hy2Foam has been shown to produce results in good agreement with previously published data for a Mach 11 nitrogen flow over a blunted cone and with the dsmcFoam code for a Mach 20 cylinder flow for a binary reacting mixture. This latter case scenario provides a useful basis for other codes to compare against.