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TWO-DIMENSIONAL MODEL OF THE INTERACTION OF A PLANE ACOUSTIC WAVE WITH NOZZLE EDGE AND WING TRAILING EDGEстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 ноября 2020 г.
- Авторы: Faranosov G.A., Bychkov O.P.
- Журнал: Journal of the Acoustical Society of America
- Том: 141
- Номер: 1
- Год издания: 2017
- Издательство: Acoustical Society of America
- Местоположение издательства: United States
- Первая страница: 289
- Последняя страница: 299
- DOI: 10.1121/1.4973855
- Аннотация: The interaction of a plane acoustic wave with two-dimensional model of nozzle edge and trailingedge is investigated theoretically by means of the Wiener-Hopf technique. The nozzle edge and thetrailing edge are simulated by two half-planes with offset edges. Shear layer behind the nozzle edgeis represented by a vortex sheet supporting Kelvin-Helmholtz instability waves. The consideredconfiguration combines two well-known models (nozzle edge and trailing edge), and reveals additionalinteresting physical aspects. To obtain the solution, the matrix Wiener-Hopf equation issolved in conjunction with a requirement that the full Kutta condition is imposed at the edges.Factorization of the kernel matrix is performed by the combination of Pade approximation and thepole removal technique. This procedure is used to obtain numerical results. The results indicate thatthe diffracted acoustic field may be significantly intensified due to scattering of hydrodynamicinstability waves into sound waves provided that the trailing edge is close enough to the vortexsheet. Similar mechanism may be responsible for the intensification of jet noise near a wing.
- Добавил в систему: Бычков Олег Павлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | 2017_JASA_Two-dimensional_model_of_the_interaction_of_plane… | 2017_JASA_Two-dimensional_model_of_the_interaction_of_plane… | 809,8 КБ | 7 ноября 2020 [BychkovOP] |