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Henning, Arne und Schröder, Andreas und Krebs, Ingo und Agocs, Janos (2010) Aeroacoustic Investigations on a Cold Jet by Means of Simultaneous PIV and Microphone Measurements. 15th International Symposium on Application Laser Techniques to Fluid Mechanics, 05. - 08. July 2010, Lisbon, Portugal.
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Offizielle URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2010/
Kurzfassung
Simultaneous PIV and microphone measurements have been performed on a cold jet at three different Mach-numbers from M = 0.5 to M = 0.9. The measurements were conducted in a synchronized manner so as to enable the calculation of the cross-correlation between the acoustic pressure and flow quantities derived from the measured velocity uctuations. 10, 000 PIV snapshots per field of view have been recorded. The main idea of the concept presented here was to use the coeffcient matrix obtained from the aforementioned correlation to identify regularities in the near-field fluctuations that are related to the radiated sound field. Results will be presented for the M = 0.5 case and a microphone positioned at an angle of 35° to the jet-axis.
| elib-URL des Eintrags: | https://elib.dlr.de/62121/ | ||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||||||
| Titel: | Aeroacoustic Investigations on a Cold Jet by Means of Simultaneous PIV and Microphone Measurements | ||||||||||||||||||||
| Autoren: |
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| Datum: | 2010 | ||||||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||
| Seitenbereich: | Seiten 1-9 | ||||||||||||||||||||
| Name der Reihe: | Conference Proceedings on USB-Stick | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Particle Image Velocimetry (PIV), high amplitude sound waves (HASW), cross-correlation | ||||||||||||||||||||
| Veranstaltungstitel: | 15th International Symposium on Application Laser Techniques to Fluid Mechanics | ||||||||||||||||||||
| Veranstaltungsort: | Lisbon, Portugal | ||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
| Veranstaltungsdatum: | 05. - 08. July 2010 | ||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||
| HGF - Programmthema: | Starrflügler (alt) | ||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugphysik (alt) | ||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren | ||||||||||||||||||||
| Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||||||
| Hinterlegt am: | 21 Jul 2010 14:18 | ||||||||||||||||||||
| Letzte Änderung: | 21 Jul 2010 14:18 |
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