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Bernicke, Paul and Akkermans, R.A.D. and Ewert, Roland and Dierke, Jürgen (2015) Calibration of Large Eddy Simulation for Sound Source Prediction. In: Calibration of Large Eddy Simulation for Sound Source Prediction. 17. STAB-Workshop, 10.-11. Nov. 2015, Göttingen.
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Abstract
A hybrid Overset LES approach has been presented to efficiently account for sound source mechanism in aeroacoustics. This contribution pre-sents the latest results of the calibration process of Large eddy simulation in homogenous decaying isotropic turbulence. At first the simulation parameter, setup and procedure of initialization is illustrated briefly and subsequently, the results are discussed in detail. As we can get from the overall good agree-ment with DNS reference data, the subgrid-scale modelling is properly ensur-ing for the correct amount of dissipation in the high wavenumber regime. Fur-ther information about near wall performance in more realistic flow has to be investigated in turbulent channel flow.
| Item URL in elib: | https://elib.dlr.de/102467/ | |||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
| Title: | Calibration of Large Eddy Simulation for Sound Source Prediction | |||||||||||||||
| Authors: |
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| Date: | 2015 | |||||||||||||||
| Journal or Publication Title: | Calibration of Large Eddy Simulation for Sound Source Prediction | |||||||||||||||
| Refereed publication: | No | |||||||||||||||
| Open Access: | No | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | No | |||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | Large Eddy Simulation, LES, Overset LES, PIANO, Decaying Homogeneous Turbulence | |||||||||||||||
| Event Title: | 17. STAB-Workshop | |||||||||||||||
| Event Location: | Göttingen | |||||||||||||||
| Event Type: | national Conference | |||||||||||||||
| Event Dates: | 10.-11. Nov. 2015 | |||||||||||||||
| Organizer: | Deutsche Strömungsmechanische Arbeitsgemeinschaft, STAB | |||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||
| HGF - Program Themes: | fixed-wing aircraft | |||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||
| DLR - Program: | L AR - Aircraft Research | |||||||||||||||
| DLR - Research theme (Project): | L - Flight Physics (old) | |||||||||||||||
| Location: | Braunschweig | |||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Technical Acoustics | |||||||||||||||
| Deposited By: | Ewert, Dr.-Ing. Roland | |||||||||||||||
| Deposited On: | 02 Feb 2016 14:52 | |||||||||||||||
| Last Modified: | 10 May 2016 23:43 |
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