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On the simultaneous design of blade and duct geometry of marine ducted propulsors

Yiu, KFC; Zangeneh, M; (1998) On the simultaneous design of blade and duct geometry of marine ducted propulsors. J SHIP RES , 42 (4) 274 - 296.

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Abstract

In ducted propulsor design for marine vessels, due to the strong interaction between the duct and the propeller blades, it is very important to design the duct and the blade geometry simultaneously. Here, a three-dimensional inverse design method is presented to take this into consideration. The method is based on three-dimensional potential flow; however. the effect of the inlet shear flow and the resulting rotational flow is also modeled via the Clebsch formulation. The duct profile is designed to achieve a target velocity distribution while the blade geometry is computed to attain a desired mass-flow rate and a certain circulation distribution. The method is applied to the design of three generic ducted propulsors with a 7-bladed contrarotating configuration.

Type: Article
Title: On the simultaneous design of blade and duct geometry of marine ducted propulsors
Keywords: 3-DIMENSIONAL INVERSE DESIGN, LARGE DEFLECTIONS, FLOWS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: http://discovery.ucl.ac.uk/id/eprint/147022
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