LDA PHASE DEPENDENT VELOCITY FIELD MEASUREMENTS AROUND A MODEL PROPELLER

The use of a laser doppler anemometer (LDA) to gather detailed information on the velocity field in the near wake of a model propeller is described. Phase dependent sampling was carried out to resolve peaks in blade frequency velocity and to map axial and transverse velocity fields at three locations upstream and downstream of the rotating propeller. A five-bladed skewed propeller model was used in the tests. Analysis of the results can be applied to optimizing propeller design with regard to such aspects as the position and diameter of tip vortices, the magnitude of the velocity peaks, and shaft boundary layer effects.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Khadzhiisky, N
  • Kalchev, R
• Conference:
  • International Symposium on Practical Design of Ships and Mobile Units (PRADS), 4th
  • Location: Varna, Bulgaria
  • Date: 1989-10-23 to 1989-10-28
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 9p.

Subject/Index Terms

• TRT Terms: Measurement; Optimization; Propellers; Velocity; Wakes
• Old TRIS Terms: Laser doppler anemometers; Velocity distribution
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00660561
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM