Investigation of acoustic radiation from a sphere pulsating on the free surface using a boundary element approach

B. Ustundag, B. Ugurlu, A. Ergin

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde BölümKonferans katkısıbilirkişi

Özet

In this study a boundary element method (BEM) is applied to investigate acoustic radiation from a sphere pulsating on the free surface of infinitely deep water. Effect of the free surface is introduced by employing a half-space Green’s function. A modified version of the Helmholtz integral equation (HIE) is used to calculate acoustic radiation from the sphere pulsating on the free surface. Free-terms of the HIE are calculated using two different forms of integrals and “dummy” boundary elements. To demonstrate applicability of the method presented, calculated acoustic pressures are compared with those by finite element (FE) method and analytical calculations. Moreover, effects of submergence depth and vibration frequency are investigated. The calculations show that there is a very good agreement between BE, FE results and analytical solutions. Also, it is observed that submergence depth and vibration frequency have significant effects on the radiated pressure magnitude and the pressure field pattern.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıSustainable Development and Innovations in Marine Technologies - Proceedings of the 19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022
EditörlerSelma Ergin, C. Guedes Soares
YayınlayanCRC Press/Balkema
Sayfalar295-302
Sayfa sayısı8
ISBN (Basılı)9781032416182
DOI'lar
Yayın durumuYayınlandı - 2023
Etkinlik19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022 - Istanbul, Turkey
Süre: 26 Eyl 202229 Eyl 2022

Yayın serisi

AdıSustainable Development and Innovations in Marine Technologies - Proceedings of the 19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022

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???event.eventtypes.event.conference???19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022
Ülke/BölgeTurkey
ŞehirIstanbul
Periyot26/09/2229/09/22

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Publisher Copyright:
© 2023 the Author(s).

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