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Horchler, Tim and Fechter, Stefan and Karl, Sebastian and Hannemann, Klaus (2019) A Timescale-Augmented Spalart-Allmaras Turbulence Model for Flamelet Combustion Applications. In: 8th European Conference for Aeronauticas and Aerospace Sciences (EUCASS). 8th European Conference for Aeronauticas and Aerospace Sciences (EUCASS), 2019-07-01 - 2019-07-04, Madrid, Spanien.
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Official URL: http://www.eucass2019.eu/papers/
Abstract
Flamelet combustion models cannot be used in combination with one-equation turbulence models, e.g. the classical Spalart-Allmaras model, because they require an explicit value for the turbulent time scale. As this can be avoided for Large-Eddy simulations, Reynolds-averaged Navier-Stokes simulations and Detached-Eddy simulations rely on an explicit transport equation for the turbulent time scale. This work extends the Spalart-Allmaras turbulence model by a transport equation for the specific dissipation rate borrowed from an earlier version of the Wilcox k-omega model. The new model is tested in simulations of a generic 2D test case and two model combustion chambers.
| Item URL in elib: | https://elib.dlr.de/128332/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | A Timescale-Augmented Spalart-Allmaras Turbulence Model for Flamelet Combustion Applications | ||||||||||||||||||||
| Authors: |
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| Date: | 1 July 2019 | ||||||||||||||||||||
| Journal or Publication Title: | 8th European Conference for Aeronauticas and Aerospace Sciences (EUCASS) | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Numerische Simulation, Turbulenzmodellierung, Verbrennung, Raketenbrennkammern, Flamelets, Flamelet-Verbrennungsmodell | ||||||||||||||||||||
| Event Title: | 8th European Conference for Aeronauticas and Aerospace Sciences (EUCASS) | ||||||||||||||||||||
| Event Location: | Madrid, Spanien | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 1 July 2019 | ||||||||||||||||||||
| Event End Date: | 4 July 2019 | ||||||||||||||||||||
| Organizer: | EUCASS | ||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||||||
| HGF - Program Themes: | Space Transportation | ||||||||||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||||||||||
| DLR - Program: | R RP - Space Transportation | ||||||||||||||||||||
| DLR - Research theme (Project): | R - Project TAUROS (TAU for Rocket Thrust Chamber Simulation) | ||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Spacecraft, GO | ||||||||||||||||||||
| Deposited By: | Horchler, Tim | ||||||||||||||||||||
| Deposited On: | 12 Jul 2019 14:50 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 20:31 |
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