THE INFLUENCE OF PROPELLER SKEW ON THE VELOCITY FIELD AND TIP VORTEX SHAPE IN THE SLIPSTREAM OF PROPELLERS

A Laser Doppler Velocimeter was used in the Hamburg Ship Model Basin's cavitation tunnel to measure the three-dimensional flow field in the slipstream of three different model propellers. The main dimensions of the propellers were the same except for the skew angles. The measurements yielded a quantitative description of the tip vortices and the influence of propeller skew on the velocity field behind the propellers. According to the authors, a surprising result of the velocity measurements was that a propeller's skew angle has only an insignificant influence on the mean values of the slipstream's flow field.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Blaurock, J
  • Lammers, G
• Conference:
  • Propellers '88 Symposium, 5th
  • Location: Virginia Beach, Virginia
  • Date: 1988-9-20 to 1988-9-21
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 17p.+discuss.

Subject/Index Terms

• TRT Terms: Flow fields; Mathematical models; Measurement; Propellers; Velocity
• Uncontrolled Terms: Slipstreams
• Geographic Terms: Germany
• Old TRIS Terms: Skewed propellers; Tip vortices; Velocity distribution
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00658836
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM