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Nonlinrar Propagation of the Sonic Boom Wave Through the Atmosphere Turbulent Layerстатья
- Авторы: B Enflo O.O.V, Rudenko
- Сборник: Proceedings 2nd EAA International Symposium on Hydroacoustics
- Год издания: 1999
- Место издания: Gdansk Inst Oceanography Gdansk, Poland
- Первая страница: 263
- Последняя страница: 266
- Аннотация: A new analytical approach to the statistical theory of sonic boom propagation through randomly inhomogeneous media is developed on the base of nonlinear evolution equations. The turbulent attnosphere layer is modelled by a random phase screen. A new Burqers' type equation is derived for arbitrary speeds of supersonic aircrafts using nonlinear geometrical acoustics approximation. The average peak pressure, squared pressure and dispersion of fiuctuations are calculated, as well as statistical distribuiions for peak pressure and its outbursts. It is shown that in spite of decrease in the main characteristics of the N-wave, the fiuciuations can increase and lead to the appearance of undesirable outbursts.
- Добавил в систему: Руденко Олег Владимирович