Accession Number:

ADA089498

Title:

Full-Scale Propeller Disk Wake Survey and Boundary Layer Velocity Profile Measurements on the 154-Foot Ship R/V Athena

Descriptive Note:

Final rept.

Corporate Author:

DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD SHIP PERFORMANCE DEPT

Personal Author(s):

• Day, Jr., William G.
• Reed, Arthur M.
• Hurwitz, Rae B.

Report Date:

1980-09-01

Pagination or Media Count:

181.0

Abstract:

Measurements of propeller disk velocity components have been made for the 154-foot ship RV ATHENA. Longitudinal, tangential, and radial velocity components are presented for three planes perpendicular to the propeller shaft for full-scale speeds of 9 and 15 knots. In addition, several boundary layer velocity profiles were measured on the full-scale hull. Non-dimensional velocity profiles are presented for several speeds. Finally, the results of an attempt at measuring time dependent velocities ahead of an operating propeller are presented.

Descriptors:

• *BOUNDARY LAYER FLOW
• *RESEARCH SHIPS
• *WAKE
• VARIABLE PITCH PROPELLERS
• SEA TESTING
• MARINE PROPELLERS
• PROPELLER BLADES
• FLOW FIELDS

Subject Categories:

• Marine Engineering
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE