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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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THE MODELLING OF JET-PLATE INTERACTION NOISE IN THE PRESENCE OF CO-FLOWтезисы доклада Исследовательская статья
- Авторы: Bychkov O., Faranosov G., Kopiev V., Soares L.F.M, Cavalieri A.V.G
- Сборник: 25nd AIAA/CEAS Aeroacoustics Conference, Aeroacoustics Conferences
- Серия: AIAA 2019-2563
- Тезисы
- Год издания: 2019
- Место издания: Delft, The Netherlands
- DOI: 10.2514/6.2019-2492
- Аннотация: The present work is dedicated to the modelling of the low-frequency part of the jetplate interaction noise in flight conditions. An analytical model used in the work is basedon the scattering of jet near-filed hydrodynamic pulsations, represented in terms ofazimuthal modes, by the plate trailing edge. Unlike the static case, in the presence of a coflow it is difficult to measure directly the azimuthal structure of the pressure in the jet nearfield. In the present work, we use the technique based on the hot-wire measurements on thejet axis. This approach allows measuring velocity fluctuations related to the axisymmetricmode. The agreement found between a parabolized stability equations (PSE) model andexperimentally measured velocity fluctuations on the jet axis allows using the PSE approachfor reconstruction of the pressure field of the axisymmetric mode in the vicinity of theplate trailing edge in static and flight conditions. These pressure characteristics are thenused as input in the analytic jet-plate interaction noise model. It is shown that this analyticmodel informed by PSE-reconstructed pressure field is capable to capture the mainfeatures of low-frequency jet-plate interaction noise in the presence of co-flow.
- Добавил в систему: Бычков Олег Павлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | faranosov2019.pdf | 5,0 МБ | 7 ноября 2020 [BychkovOP] |