Struktura obiektu

Autor:

Hadipour, Ali ; Khanzadi, H. ; Abadi, K.A.V. ; Motahari, H.

Współtwórca:

Jurczak, Paweł - red.

Tytuł:

Hydrodynamic analysis of noise propagation by the high skew marine propeller working in non-uniform inflow

Tytuł publikacji grupowej:

IJAME, volume 26 (2021)

Temat i słowa kluczowe:

noise ; high skew marine propeller ; pressure fluctuating ; blade passing frequency

Abstract:

Being able to predict ship and marine propulsion noise is an important issue for naval architectures and the international maritime community. The main objective of this paper is the numerical investigation on the noise propagation by the high skew marine propeller working in a non-uniform inflow via RANS solver in the broadband frequency range. ; The pressure fluctuations were monitored at three points on the propeller blade, then by using the FFT operator we computed the blade passing frequency (BPF) for different propeller loading conditions. Based on these pressure pulses and adopting the Fowcs Williams-Hawking model we calculated noise radiated at the monitoring points. ; The results showed the BPF and noise level increased by increasing the load on the blades and we also observed that the noise generated at the leading edge was greater than at other points. Furthermore, the study of pressure fluctuations showed the propeller tip has more pressure variations in one revolution than other regions of the propeller surface.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Data wydania:

2021

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

10.2478/ijame-2021-0007

Strony:

104-121

Źródło:

IJAME, volume 26, number 1 (2021)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

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Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego