| Publikationstyp: | Konferenz: Paper |
| Art der Begutachtung: | Keine Angabe |
| Titel: | A gas-kinetic scheme for the simulation of turbulent flow |
| Autor/-in: | Righi, Marcello |
| Tagungsband: | Proceedings of the 29th International Symposium on Rarefied Gas Dynamics |
| Angaben zur Konferenz: | 29th International Symposium on Rarefied Gas Dynamics, Xi'an, China, 13-18 July 2014 |
| Erscheinungsdatum: | 2014 |
| Verlag / Hrsg. Institution: | RGD29 |
| Verlag / Hrsg. Institution: | Xi'an |
| ISBN: | 978-0-7354-1265-1 978-0-7354-1266-8 978-0-7354-1267-5 |
| Sprache: | Englisch |
| Schlagwörter: | Turbulence Modelling; Gas-Kinetic; RANS; Boltzmann |
| Fachgebiet (DDC): | 530: Physik |
| Zusammenfassung: | A BGK gas-kinetic scheme may simulate turbulent flow, provided the relaxation time is defined in such a way, that it accounts for the unresolved turbulent fluctuations. In this study, a simple turbulent gas-kinetic scheme is developed by coupling the evolution of conservative variables to a two-equation turbulence model. Its behavior is compared to the one of conventional schemes, based on the Navier-Stokes equations, by simulating turbulent flow cases with strong interactions between shocks and boundary layer. Whereas conventional schemes are known to fail, or to be rather inaccurate, the turbulent gas-kinetic scheme provides results which are consistently good or at least acceptable for engineering standards. It is argued, that gas-kinetic schemes have an in-built “multiscale” sensor which correct advection whenever the ratio of unresolved to resolved scales of motion raises above negligible values. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/13608 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institut für Mechanische Systeme (IMES) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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Righi, M. (2014). A gas-kinetic scheme for the simulation of turbulent flow. Proceedings of the 29th International Symposium on Rarefied Gas Dynamics.
Righi, M. (2014) ‘A gas-kinetic scheme for the simulation of turbulent flow’, in Proceedings of the 29th International Symposium on Rarefied Gas Dynamics. Xi’an: RGD29.
M. Righi, “A gas-kinetic scheme for the simulation of turbulent flow,” in Proceedings of the 29th International Symposium on Rarefied Gas Dynamics, 2014.
RIGHI, Marcello, 2014. A gas-kinetic scheme for the simulation of turbulent flow. In: Proceedings of the 29th International Symposium on Rarefied Gas Dynamics. Conference paper. Xi’an: RGD29. 2014. ISBN 978-0-7354-1265-1
Righi, Marcello. 2014. “A Gas-Kinetic Scheme for the Simulation of Turbulent Flow.” Conference paper. In Proceedings of the 29th International Symposium on Rarefied Gas Dynamics. Xi’an: RGD29.
Righi, Marcello. “A Gas-Kinetic Scheme for the Simulation of Turbulent Flow.” Proceedings of the 29th International Symposium on Rarefied Gas Dynamics, RGD29, 2014.
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