Academic Journal
Broadband and Low-Frequency Acoustic Liner Investigations at NASA and ONERA
| العنوان: | Broadband and Low-Frequency Acoustic Liner Investigations at NASA and ONERA |
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| المؤلفون: | Jones, Michael, Simon, Frank, Roncen, Rémi |
| المساهمون: | NASA Langley Research Center Hampton (LaRC), DMPE, ONERA, Université de Toulouse Toulouse, ONERA-PRES Université de Toulouse, The first author would like to acknowledge funding support provided by the Advanced Air Transport Technology Project of the NASA Advanced Air Vehicles Program, and the contributions of Douglas Nark, Brian Howerton, Noah Schiller, Martha Brown, and Alonso (Max) Reid of the NASA Langley Liner Physics Team regarding investigations of the NASA liner concepts., The second and third authors would like to acknowledge funding support provided by ONERA. The second author would like to thank in particular Delphine Sebbane, Fabien Mery and Estelle Piot for their contribution to liner activities within the ONERA ITAC unit, and also the NASA Langley Liner Physics Team without whom some NASA experiments desired by ONERA would not have been possible. |
| المصدر: | ISSN: 0001-1452. |
| بيانات النشر: | HAL CCSD American Institute of Aeronautics and Astronautics |
| سنة النشر: | 2022 |
| المجموعة: | ONERA: HAL (Centre français de recherche aérospatiale / French Aerospace Lab) |
| مصطلحات موضوعية: | Acoustic liner, Acoustic absorption, [SPI]Engineering Sciences [physics], [PHYS]Physics [physics] |
| الوصف: | International audience ; NASA and ONERA have explored a number of acoustic liner concepts over the last few decades. This paper begins with a brief review regarding conventional liners as well as the recent implementation of multi-degree-of-freedom liners enabled by embedded mesh caps. Six novel liner concepts are presented, along with the accompanying impedance prediction models used in their design. Each of the NASA concepts is designed to vary the impedance over the surface of the liner in a controlled manner, whereas the ONERA concepts make use of long neck acoustic resonators. Selected results are presented for each of these liners evaluated in the NASA and ONERA test rigs. Finally, a set of aeroacoustic metrics is defined for comparison standardization between conventional and innovative acoustic liners and all the concepts are compared on this basis. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-03519841; https://hal.science/hal-03519841; https://hal.science/hal-03519841/document; https://hal.science/hal-03519841/file/DMPE21036_vacceptee.pdf |
| DOI: | 10.2514/1.J060862 |
| الاتاحة: | https://hal.science/hal-03519841 https://hal.science/hal-03519841/document https://hal.science/hal-03519841/file/DMPE21036_vacceptee.pdf https://doi.org/10.2514/1.J060862 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.199F113D |
| قاعدة البيانات: | BASE |
| DOI: | 10.2514/1.J060862 |
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