Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Vibrations in Physical Systems

1 2021

Powiadomienia systemowe

Sesja wygasła!
Sesja wygasła!
Sesja wygasła!
Sesja wygasła!

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: acoustic analogy

Sortuj według:

Ogranicz wyniki do:

Influence of the elastic cavity walls on cavity flow noise

Łojek Paweł, Czajka Ireneusz, Gołaś Andrzej, Suder-Dębska Katarzyna

Vibrations in Physical Systems

2021

Vol. 32, nr 1

art. no. 2021109

In this study, computational fluid dynamics and computational aeroacoustics methods were used to investigate the influence of the elastic cavity walls on the noise generated by the flow over rectangular cavity. Two cases were considered and compared, one with rigid cavity walls, and one with elastic walls. In the latter case, the movement of the walls were solved by finite element modelling and coupled with CFD simulations. The noise generated by the flow over cavity was computed using Ffowcs Williams & Hawkings acoustic analogy. The increase of the sound pressure level for elastic walls case at frequency range of 1 kHz to 10 kHz is observed, compared to the rigid walls case.