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Performance Prediction of a Nozzle Propeller

Liming Xia (Institutionen för sjöfart och marin teknik, Marine Design) ; Johan Lundberg ; Rickard Bensow (Institutionen för sjöfart och marin teknik, Marine Design)
29th Symposium on Naval Hydrodynamics, Gothenburg, Sweden, Aug. 2012 (2012)
[Konferensbidrag, refereegranskat]

Nozzle, or ducted, propellers are most commonly used when high efficiency is required at low speed of the vessel. However, normally with a nozzle fitted that accelerates propeller inflow, its blades take a larger risk of cavitation. This paper examines the performance of a nozzle propeller configuration in terms of open water and thrust breakdown characteristics by both experimental and conventional RANS CFD methods. Combining the merits of EFD and CFD, the results reveal some promising features as well as challenges in performance predictions of nozzle propellers.



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Denna post skapades 2012-12-12. Senast ändrad 2014-09-02.
CPL Pubid: 167536

 

Institutioner (Chalmers)

Institutionen för sjöfart och marin teknik, Marine Design (2012-2014)

Ämnesområden

Transport
Innovation och entreprenörskap (nyttiggörande)
Farkostteknik
Strömningsmekanik

Chalmers infrastruktur

C3SE/SNIC (Chalmers Centre for Computational Science and Engineering)