A METHOD FOR THE DESIGN OF A SKEWED MARINE PROPELLER BASED ON WEISSINGER'S L-METHOD
Abstract
A theoretical method is presented for the design of a marine propeller with non-radial or skewed blades. The method is based on Weissinger's L-Method with each blade replaced by a bound vortex along its quarter chord line. The velocity induced by the complete bound and trailing vortex system along the three-quarter chord line is specified to satisfy the condition of tangency to the mean camber line. The effects of nonuniform inflow and finite-thickness are included. The induced velocity is calculated by applying the law of Biot-Savart to the vortex system representing the blade. The integration of this law for the trailing vortex system gives a solution consisting of the tabulated solution of Lerbs for an unskewed blade designed using Prandtl's lifting line theory plus an additional solution representing the effect of skew and the use of Weissinger's L-Method. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 04, 1962
- Accession Number
- AD0285293
Entities
People
- R.e. Henderson
Organizations
- Pennsylvania State University