AN INVESTIGATION OF WAKE MODEL AND ITS EFFECT ON THE HYDRODYNAMIC PERFORMANCE OF PROPELLERS BY USING A SURFACE PANEL METHOD

This paper describes a surface panel method formulation for the analysis of a marine propeller for different wake models. The method is based on Green's theorem which is composed of the combination of dipoles and source distribution son the blade, hub and also, dipole distribution on the trailing vortex wake to represent the potential flow around the propeller. Investigation of three kinds of wake models (linear wake model, devised wake model based on slip ratio and new wake model based on thrust loading coefficient) for a marine propeller are presented. The new wake model based on thrust loading coefficient uses the momentum theory technique in conjunction with an iterative procedure to generate the wake model. Using momentum theory, the ratio of propeller wake radius at the infinite downstream to the blade radius can be obtained. The first solution is obtained based on the linear wake model. The iteration process is repeated until the results are converged. The calculated results are in good agreement compared with experimental data and other methods.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 178, Dec 1995, p 83 [9 p, 21 ref, 2 tab, 19 fig]
  • Authors:
    • Ghassemi, Hassan
    • Ikehata, M
    • Yamasaki, H
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00727994
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM