ON THE VALIDATION OF AN UNSTEADY LIFTING SURFACE METHOD FOR PROPELLER DESIGN ANALYSIS

A computer code for unsteady performance analysis of a cavitating propeller (PUF 3A) was validated for design purposes. The modification to the code, that after thorough investigation proved to be necessary, is described. A statistical fit of the parameters determining the wake behind the propeller was made to be able to predict the performance of fixed and controllable pitch propellers, both in design and off-design condition (including pitch deflection) within an acceptable level. With this lifting surface took it is not only possible to determine the open-water performance of different types of propellers but also the behind ship performance including cavitation, unsteady (shaft-) forces and pressure pulse levels. For these properties a comparison between predicted and experimental values has been made for a wide range of propellers. This tool can be applied to various design cases. Various design aspects such as efficiency, cavitation behaviour and pressure pulses at design and off-design conditions are balanced using variation of the propeller geometry in a systematic manner. This integrated design approach yields an optimal solution for the propeller geometry within given design constraints.

• Supplemental Notes:
  • Propellers/Shafting '94 Symposium; 20-21 Sept 1994; Virginia Beach, VA, USA. Sponsored and Publ by SNAME, USA. Pprs. Ppr no 11 [26 p, 45 ref, 5 tab, 12 fig]
• Authors:
  • Beek, T
  • van
• Publication Date: 1994

Language

• English

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Cavitation (Mechanics); Cavitation erosion; Propellers
• Old TRIS Terms: Design process; Lifting surfaces; Propeller efficiency
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00717703
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 4 1996 12:00AM