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Spehr, Carsten und Alvarez, Julian und Delfs, Jan (2006) Flow-induced noise generation on orifice plates in air conditioning ducts. In: 2006 Inter-Noise. Inter-Noise 2006, 2006-12-03 - 2006-12-06, Honolulu, Hawaii, (USA).
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Kurzfassung
In the present study the acoustic sources generated by turbulent flow inside internal ducts are studied experimentally. The noise is generated due to the flow passing typical components used in the aircraft climate control system, like bifurcations, orifices or bends. The experimental set-up consists of a straight tube, in which the air is driven by a silent fan followed by a silencer. This study is the first of a series of experiments to examine the influence of upstream generated turbulence on the sound generation on the components of pipe systems. In this preliminary study a configuration of one orifice with varying inner diameter is examined. The acoustic measurements were conducted for a frequency range of 63 Hz to 10 kHz. Thereby, the dependence on the generated noise on the Mach number and on the radius of the orifices could be determined.
| elib-URL des Eintrags: | https://elib.dlr.de/53619/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||
| Titel: | Flow-induced noise generation on orifice plates in air conditioning ducts | ||||||||||||||||
| Autoren: |
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| Datum: | 6 Dezember 2006 | ||||||||||||||||
| Erschienen in: | 2006 Inter-Noise | ||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Air conditioning systems, noise, experimental, turbulence | ||||||||||||||||
| Veranstaltungstitel: | Inter-Noise 2006 | ||||||||||||||||
| Veranstaltungsort: | Honolulu, Hawaii, (USA) | ||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
| Veranstaltungsbeginn: | 3 Dezember 2006 | ||||||||||||||||
| Veranstaltungsende: | 6 Dezember 2006 | ||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | L VU - Luftverkehr und Umwelt (alt) | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L VU - Luftverkehr und Umwelt | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Leiser Luftverkehr (alt) | ||||||||||||||||
| Standort: | Braunschweig | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Technische Akustik | ||||||||||||||||
| Hinterlegt von: | Spehr, Dr.-Ing. Carsten | ||||||||||||||||
| Hinterlegt am: | 17 Mär 2008 | ||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:16 |
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