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Ramos Ruiz, Andres E. and Gürtler, Johannes and Schulz, Anita and Bake, Friedrich and Enghardt, L. and Czarske, Jürgen (2017) Camera-based and non-invasive measurement of local sound pressure on a Bias-Flow-Liner. GALA - Fachtagung “Experimentelle Strömungsmechanik”, 5. – 7. September 2017, Karlsruhe.
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Abstract
Zur Lärmreduktion an Turbinen kommen sogenannte Bias-Flow-Liner (BFL) zum Einsatz. Dabei handelt es sich um perforierte Bleche mit dahinterliegender Kavität, deren aeroakusti-sches Dämpfungsprinzip auf der Wechselwirkung von Schall und dem durch die Perforation geführten Bias-Flow beruht. Diese Interaktion ist jedoch noch nicht vollständig verstanden. Um die Dämpfungseffizienz von BFL zu erhöhen, sind ortsaufgelöste, nicht-invasive Mes-sungen des Schalldrucks notwendig. In diesem Beitrag stellen wir ein Messsystem zur nicht invasiven, 2D Schalldruckmessung mit einer Ortsauflösung von 500
| Item URL in elib: | https://elib.dlr.de/113387/ | |||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||||||||
| Title: | Camera-based and non-invasive measurement of local sound pressure on a Bias-Flow-Liner | |||||||||||||||||||||
| Authors: |
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| Date: | September 2017 | |||||||||||||||||||||
| Refereed publication: | Yes | |||||||||||||||||||||
| Open Access: | No | |||||||||||||||||||||
| Gold Open Access: | No | |||||||||||||||||||||
| In SCOPUS: | No | |||||||||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||||||||
| Status: | Published | |||||||||||||||||||||
| Keywords: | Kameravibrometer, Aeroakustik, ortsaufgelöste, nicht-invasive Messungen des Schalldrucks | |||||||||||||||||||||
| Event Title: | GALA - Fachtagung “Experimentelle Strömungsmechanik” | |||||||||||||||||||||
| Event Location: | Karlsruhe | |||||||||||||||||||||
| Event Type: | national Conference | |||||||||||||||||||||
| Event Dates: | 5. – 7. September 2017 | |||||||||||||||||||||
| Organizer: | GALA | |||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||||||||
| HGF - Program Themes: | propulsion systems | |||||||||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||||||||
| DLR - Program: | L ER - Engine Research | |||||||||||||||||||||
| DLR - Research theme (Project): | L - Turbine Technologies | |||||||||||||||||||||
| Location: | Berlin-Charlottenburg | |||||||||||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology > Engine Acoustic | |||||||||||||||||||||
| Deposited By: | Bake, Dr.-Ing. Friedrich | |||||||||||||||||||||
| Deposited On: | 21 Sep 2017 10:44 | |||||||||||||||||||||
| Last Modified: | 27 Jan 2020 08:10 |
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