Accession Number : ADA018626

Title :   Propeller-Induced Pressures on a Rudder-Like Surface.

Descriptive Note : Final rept.,

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

Personal Author(s) : Nelka,John J.

Report Date : OCT 1975

Pagination or Media Count : 55

Abstract : Total propeller-induced fluctuating pressures were measured on a rudder-like surface, at zero deg rudder angle, located downstream and in the slip-stream of the propeller. The amplitude and phase of the blade-frequency portions of the measured induced pressures were determined for operation in uniform flow. The effects of propeller-rudder clearance, propeller-loading, blade skew, and blade warp on the blade frequency pressure were determined.

Descriptors :   *Ships, *Vibration, *Hydrodynamics, Rudders, Propellers(Marine), Interactions, Skewness, Force(Mechanics), Mathematical models, Model tests, Water tunnels, Propeller blades, Displacement, Plates, Clearances, Frequency, Pressure measurement

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE