Accession Number:

ADA034936

Title:

A Deformed Wake Model for Marine Propellers

Descriptive Note:

Final rept.

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING

Personal Author(s):

Report Date:

1976-11-01

Pagination or Media Count:

44.0

Abstract:

Results are given of a systematic series of experiments in which the radius and pitch of propeller tip vortices are measured and analyzed. The measurements of ultimate wake pitch are compared with theoretical predictions based both on a simple activator disc model and on a direct calculation of the self-induced velocities of the helical vortices. The effect of wake deformation on the computed radial distribution of pitch and camber is given for a specific design example.

Subject Categories:

  • Marine Engineering
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE