Development of a two-temperature open source CFD model for hypersonic reacting flows

Vincent Casseau, Thomas J. Scanlon, Richard E. Brown

Research output: Contribution to conferencePaper

8 Citations (Scopus)
445 Downloads (Pure)

Abstract

The highly complex flow physics that characterise re-entry conditions have to be reproduced by means of numerical simulations with both an acceptable level of accuracy and within reasonable timescales. In this respect, a new CFD solver, hyFoam, has been developed within the framework of the open-source CFD platform OpenFOAM for modelling hypersonic reacting flows. hyFoam has been successfully validated for two 0-degree adiabatic heat bath test cases and the limitations of a one-temperature CFD model have been highlighted. To cope with high-temperature gas chemistry, the internal energy has been decomposed into its elementary energy modes, thus introducing the translational-rotational and the vibrational temperatures. A two-temperature CFD model is being implemented in order to attain a better agreement between CFD and DSMC results. Validation of the code for a single species has been executed while mixture-related libraries are currently being developed. The vibrational-translational relaxation time formulation has also been presented and discussed.
Original languageEnglish
PagesArticle AIAA-3637
Number of pages14
DOIs
Publication statusPublished - 6 Jul 2015
Event20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15 - Glasgow, United Kingdom
Duration: 6 Jul 20159 Jul 2015

Conference

Conference20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15
CountryUnited Kingdom
CityGlasgow
Period6/07/159/07/15

Keywords

  • open source
  • CFD modelling
  • hypersonic flows
  • thermodynamics

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    Casseau, V., Scanlon, T. J., & Brown, R. E. (2015). Development of a two-temperature open source CFD model for hypersonic reacting flows. Article AIAA-3637. Paper presented at 20th International Space Planes and Hypersonic Systems and Technologies Conference, MHYP15, Glasgow, United Kingdom. https://doi.org/10.2514/6.2015-3637