Optimum Propellers with Cavity-Drag and Frictional-Drag Effects
Affiliation:
1. David W. Taylor Naval Ship Research and Development Center
Abstract
In a variational problem for the optimum pitch distribution of a propeller, the Euler differential equation with Munk's displacement theory is utilized. Effects of frictional-drag and cavity-drag are considered through simple approximate relations of drag-lift ratio and the circulation. Simple relations between the optimum pitch distributions and the drag-lift ratio are obtained both for free-running and wake-adapted propellers.
Publisher
The Society of Naval Architects and Marine Engineers
Subject
Applied Mathematics,Mechanical Engineering,Ocean Engineering,Numerical Analysis,Civil and Structural Engineering
Cited by
1 articles.
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1. A practical technique for improvement of open water propeller performance;Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment;2011-09-12