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Subcavitating Propeller Design for Maximum Propeller Efficiency or Minimum Fuel Use

N. Bernard Kroeger, Damon E. Cummings

Abstract

An optimization procedure is described for the design of a subcavitating propeller for given service conditions. Strength and cavitation criteria are included. Diameter, rpm, chord lengths, pitch distribution, camber distribution and thickness distribution are developed for the optimum performance. The optimum propeller is defined as that using the minimum power at a given ship speed. If power plant characteristics are known, the propeller may be designed for minimum fuel rate at a given ship speed. Characteristics of the propeller at other than design conditions may be derived.

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Available abstract

Key concepts: Propeller, Camber (aerodynamics), Blade pitch, Marine engineering, Engineering, Chord (peer-to-peer), Cavitation, Propulsive efficiency