Browse by author
Lookup NU author(s): Professor Mehmet Atlar
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
This paper presents the results of a numerical performance analysis to demonstrate the worthiness of a recently patented new concept propulsor, the so-called "thrust-balanced propeller (TBP)". The main advantage of this unconventional propulsor is its inherent ability to reduce the unsteady effect of blade forces and moments when it is operating in a non-uniform. wake flow. The propulsor comprises a pair of diametrically opposed blades that are connected to one another and mounted so as to be rotatable together through a limited angle about their spindle axis. A quasi-hydrodynamic approach is described and applied to perform the numerical analysis using a state-of-the-art lifting surface procedure for conventional propellers. Performance comparisons with a conventional fixed-pitch propeller are made for the blade forces and moments, efficiency, cavitation extents and fluctuating hull pressures. Bearing in mind the quasi-static nature of the analyses, the results present favourable performance characteristics for the thrust-balanced propeller and support the worthiness of the concept. However, the concept needs to be proved through physical model tests, which are planned to take in a cavitation tunnel. (C) 2001 Elsevier Science Ltd. All rights reserved.
Author(s): Atlar M; Takinaci AC
Publication type: Article
Publication status: Published
Journal: Ocean Engineering
Year: 2002
Volume: 29
Issue: 2
Pages: 129-149
ISSN (print): 0029-8018
ISSN (electronic): 1873-5258
Publisher: Pergamon
URL: http://dx.doi.org/10.1016/S0029-8018(01)00005-1
DOI: 10.1016/S0029-8018(01)00005-1
Altmetrics provided by Altmetric
