publication . Doctoral thesis . 2008

Numerically-based ducted propeller design using vortex lattice lifting line theory

Stubblefield, John M.;
Open Access
  • Published: 01 Jun 2008
  • Publisher: Monterey, California. Naval Postgraduate School
Abstract
CIVINS (Civilian Institutions) Thesis document This thesis used vortex lattice lifting line theory to model an axisymmetrical-ducted propeller with no gap between the duct and the propeller. The theory required to model the duct and its interaction with the propeller were discussed and implemented in Open-source Propeller Design and Analysis Program (OpenProp). Two routines for determining the optimum circulation distribution were considered, and a method based on calculus of variations was selected. The results of this model were compared with the MIT Propeller Lifting Line Program (PLL) output for the purpose of validation. Ducted propellers are prevalent in m...
Subjects
Medical Subject Headings: animal structuresbody regionsmacromolecular substancesmusculoskeletal, neural, and ocular physiologytechnology, industry, and agriculture
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