Write your message
Volume 9, Issue 17 (9-2013)                   Marine Engineering 2013, 9(17): 1-14 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
bagheri M R, seif M S, mehdigholi H. Hydrodynamic and acoustic analysis of underwater propellers by numerical method. Marine Engineering 2013; 9 (17) :1-14
URL: http://marine-eng.ir/article-1-237-en.html
Hydrodynamic and acoustic analysis of underwater propellers by numerical method
Mohammad reza Bagheri1 , Mohammad saeid Seif * 1, Hamid Mehdigholi1
1- Sharif University of Technology
Abstract:   (8117 Views)
The noise and hydrodynamics of two propeller models were investigated. First, the non-cavitating and cavitating flow was analyzed in different operating conditions around the marine propellers using the finite volume method (FVM). The hydrodynamic tests of the propeller were performed in the cavitation tunnel and similar results were observed between the numerical and experimental results. Second, the flow results obtained in the first step were used as the input to extract the sound spectrum levels (SPLs) in the Ffowcs Williams–Hawkings (FW-H) formulation, to predict the far field noise. In addition, the behaviour of the obtained SPL was studied and a good agreement was observed between our data and the previous works results. We investigated the noise emission regions and compared the SPL in different separation between the propeller hub, and the monopole and dipole sources.
Keywords: cavitating and noncavitating flow, monopolare and biopolar, noncavitaing noise, finite volume method, far field
Full-Text [PDF 3219 kb]   (3457 Downloads)    
Type of Study: Research Paper | Subject: Ship Hydrodynamic
Received: 2013/02/22 | Accepted: 2013/08/20
Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License
International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.