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Author Ghassemi, Hassan
Affiliation Amirkabir University of Technology (AUT), Department of Maritime Engineering Hafez Ave, No. 424, P.O. Box 15875-4413, Tehran, Iran
E-mail gasemi@aut.ac.ir
ISSN printed 1733-8670
URI https://repository.am.szczecin.pl/handle/123456789/2510
Abstract Propellers usually operate in the ship’s stern, where the inflow of the non-uniform wake generates oscillating loads and changes the hydrodynamic performance. Therefore, determination of the forces on propellers and hydrodynamic performance due to a non-uniform wake field are the challenging problems for naval architects and hydrodynamists. The main objectives of the present study are to assess the hydrodynamic performance for a single blade and all the blades. The propeller is a B-series propeller under non-uniform wake field behind the Seiun-Maru (hereafter SM) ship hull. A practical approach is employed to calculate the hydrodynamic oscillating loads of the ship propeller under a non-uniform wake field. Results of the computations on the propeller behind the SM ship, due to a non-uniform wake field, are presented and analyzed using classical mathematical methods over a single cycle. The results show that a variation of thrust with the discussed parameters is the same as that shown for torque, also the blade-frequency of the total force, thrust and torque is an increasing function of radial sections, whereas these parameters decrease with increasing radial blade sections.
Pages 9-20
Publisher Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie
Keywords hydrodynamic performance
Keywords non-uniform wake
Keywords oscillating thrust and torque
Keywords practical approach
Keywords ship propeller
Keywords ship design
Title Practical approach to calculating the hydrodynamic oscillating loads of a ship propeller under non-uniform wake field
Type Original scientific article
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ISSN on-line 2392-0378
Language English
Funding No data
Figures 10
Tables 0
DOI 10.17402/308
Published 2018-12-18
Accepted 2018-05-16
Recieved 2018-03-25


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