Izvorni znanstveni članak
A Practical Noise Prediction Method for Cavitating Marine Propellers
Serkan Ekinci
; Yildiz Technical University, Department of Naval Architecture and Marine Engineering, 34349 Besiktas, Istanbul, Turkey
Fahri Celik
; Yildiz Technical University, Department of Naval Architecture and Marine Engineering, 34349 Besiktas, Istanbul, Turkey
Mesut Guner
; Yildiz Technical University, Department of Naval Architecture and Marine Engineering, 34349 Besiktas, Istanbul, Turkey
Sažetak
The article presents an analysis procedure that includes noise prediction for marine propellers. As analysis of the propellers is carried out using a lifting surface method, noise prediction
due to the blade sheet cavitation is taken into account using a semi-empirical formula for low frequencies. Using this procedure, an application is performed for a conventional propeller model
(DTMB 4148), and noise levels of the propeller are compared with the values proposed by ICES (International Council for Exploration of the Sea). In addition, two different propellers (DTMB 4119
and Seiun-maru HSP) are analyzed by lifting surface and CFD methods; the results are compared with those of the Hoshino panel method and experimental ones. It can be concluded that the
present approach provides easy, fast and reliable solutions for noise analysis with low cost and time for propeller pre-design.
Ključne riječi
propeller analysis; lifting surface; noise prediction; sheet cavitation; CFD
Hrčak ID:
63179
URI
Datum izdavanja:
15.12.2010.
Posjeta: 3.489 *