On the Simultaneous Design of Blade and Duct Geometry of Marine Ducted Propulsors

Ka Fai Cedric Yiu, M. Zangeneh

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)274-296
Number of pages23
JournalJournal of Ship Research
Issue number4
Publication statusPublished - 1 Dec 1998
Externally publishedYes

ASJC Scopus subject areas

  • Numerical Analysis
  • Civil and Structural Engineering
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics


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