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Schüle, Chan Yong and Rossignol, Karl-Stephane (2012) A separated flow model for semi-empirical prediction of trailing edge noise. 18. DLRG-Fach-Symposium, 2012-11-06 - 2012-11-07, Stuttgart, Deutschland.
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Abstract
An accurate description of the mean ow, the rms values and spectral shapes of the separated boundary layer play an important role in predicting trailing edge far eld noise. A possible method for describ- ing the mean and rms quantities based on a modication of Coles' Law of the Wake and Prandtls mixing length theory is presented. The model is validated against related experiments from literature and new mea- surements conducted at DLR Braunschweig. Additionally, a comparison between the van Karman spectrum for isotropic turbulence and the mea- sured spectra inside the separated boundary layer is given. The results strongly suggest that the spectra as well as the mean and rms values of the separated ow can be modeled with the proposed approaches
| Item URL in elib: | https://elib.dlr.de/78666/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||
| Title: | A separated flow model for semi-empirical prediction of trailing edge noise. | ||||||||||||
| Authors: |
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| Date: | 6 November 2012 | ||||||||||||
| Refereed publication: | No | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Volume: | Jahresbericht 2012 | ||||||||||||
| Page Range: | pp. 198-199 | ||||||||||||
| Series Name: | STAB-Mitteilung | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | Trailing edge, noise, modeling, separated ow, Coles Law of the Wake, van Karman spectrum | ||||||||||||
| Event Title: | 18. DLRG-Fach-Symposium | ||||||||||||
| Event Location: | Stuttgart, Deutschland | ||||||||||||
| Event Type: | national Conference | ||||||||||||
| Event Start Date: | 6 November 2012 | ||||||||||||
| Event End Date: | 7 November 2012 | ||||||||||||
| Organizer: | DLRG | ||||||||||||
| HGF - Research field: | Energy | ||||||||||||
| HGF - Program: | Renewable Energies | ||||||||||||
| HGF - Program Themes: | Wind Energy (old) | ||||||||||||
| DLR - Research area: | Energy | ||||||||||||
| DLR - Program: | E SF - Solar research | ||||||||||||
| DLR - Research theme (Project): | E - Windenergie (old) | ||||||||||||
| Location: | Braunschweig | ||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Technical Acoustics Institute of Aerodynamics and Flow Technology | ||||||||||||
| Deposited By: | Rossignol, Karl-Stephane | ||||||||||||
| Deposited On: | 17 Dec 2012 12:55 | ||||||||||||
| Last Modified: | 24 Apr 2024 19:45 |
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