Accession Number:

AD0739375

Title:

Free-Surface Effects in Hull Propeller Interaction.

Descriptive Note:

Final rept.,

Corporate Author:

MICHIGAN UNIV ANN ARBOR DEPT OF NAVAL ARCHITECTURE AND MARINE ENGINEERING

Personal Author(s):

Report Date:

1971-09-01

Pagination or Media Count:

136.0

Abstract:

The quantitative role of wavemaking at the free surface in the phenomenon of hull propeller interaction is investigated by means of a general scheme devised to determine the potential, viscous and wave components of wake and thrust deduction. It requires the concerted application of various analytical tools such as the lifting line theory of propellers, the method of singularities for representing the hull and propeller by source distributions and the linearized free-surface theory of wavemaking, as well as model experiment techniques such as the conventional Froude analysis of propulsion factors, nominal wake measurements and wave profile measurements. The procedure is applied to the specific case of a thin mathematical hull form driven by a four-bladed propeller of simple geometry.

Subject Categories:

  • Marine Engineering
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE