| Publication type: | Conference paper |
| Type of review: | Not specified |
| Title: | A gas-kinetic scheme for the simulation of turbulent flow |
| Authors: | Righi, Marcello |
| Proceedings: | Proceedings of the 29th International Symposium on Rarefied Gas Dynamics |
| Conference details: | 29th International Symposium on Rarefied Gas Dynamics, Xi'an, China, 13-18 July 2014 |
| Issue Date: | 2014 |
| Publisher / Ed. Institution: | RGD29 |
| Publisher / Ed. Institution: | Xi'an |
| ISBN: | 978-0-7354-1265-1 978-0-7354-1266-8 978-0-7354-1267-5 |
| Language: | English |
| Subjects: | Turbulence Modelling; Gas-Kinetic; RANS; Boltzmann |
| Subject (DDC): | 530: Physics |
| Abstract: | 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 |
| Fulltext version: | Published version |
| License (according to publishing contract): | Licence according to publishing contract |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Mechanical Systems (IMES) |
| Appears in collections: | Publikationen School of Engineering |
Files in This Item:
There are no files associated with this item.
Show full item record
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.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.