Advanced Naval Vehicle Concepts Evaluation (ANVCE) Standard Performance and Weights for Propulsors.
Abstract
This document presents methods of predicting propulsor efficiency and weight for preliminary design purposes. Knowing the thrust required, and taking the working area of the propulsor as an independent variable, the propulsive efficiency, and hence the power required, can be computed. The designer will then select a rotational tip speed (which, in air, largely defines his noise levels and, in water, is subject to cavitation and structural strength limitations) and so determine torque. For air propulsors, the accuracy of the performance method given in this document will degrade as the tip speed approaches the speed of sound, but such high tip speeds are, in any case, precluded by the need for reasonable noise levels. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADA081569