A SURFACE PANEL METHOD WITH A DEFORMED WAKE MODEL TO ANALYSE HYDRODYNAMIC CHARACTERISTICS OF PROPELLERS IN STEADY FLOW

A surface panel method with a deformed wake model of trailing vortices for the hydrodynamic analysis of a propeller operating in steady flow is described. The surfaces of propeller blades, hub and trailing vortex sheets are approximated by a number of small hyperboloidal quadrilateral panels with constant source and doublet distributions. The strength of source and doublet is determined by solving the boundary value problem at control point on each panel surface. Next, flow fields around propeller were precisely measured in a cavitation tunnel by a 3-component Laser Doppler Velocimeter (LDV). On the basis of the measured data of propeller slipstream, a deformed wake model of the trailing vortices is proposed. Pressure distributions on propeller blade and flow fields around propeller calculated by the present panel method agree well with the experimental data. The calculated open-water characteristics of propeller are also in good agreement with the experiments.

• Supplemental Notes:
  • Mitsubishi Technical Bull, n 195, April 1991 [14 p, 23 ref, 3 tab, 23 fig]
• Authors:
  • Hoshino, T
• Publication Date: 1991

Language

• English

Subject/Index Terms

• TRT Terms: Mechanical loads; Vortices
• Old TRIS Terms: Propeller flow; Propeller loading; Surface panel method; Trailing vortices
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00700782
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM