A FLOW VISUALIZATION STUDY OF A HIGH PITCH CYCLOIDAL PROPELLER

An experimental test program designed to study the flow through a cycloidal propeller (P/D = pi/0.70) was conducted in the water tunnel at the National Research Laboratories in Ottawa. Visualization of the flow was achieved by injecting reflecting particles that followed the streamlines and by illuminating sections of the flow with a plane light source. Records were made using both still and movie cameras. The tunnel speed was varied to permit views of the working model to be taken at several advance ratios. For purposes of detailed analysis, the actual angle of attack and resultant velocity vectors were calculated from the inflow parameters obtained from still pictures. The loads normal to the blade were measured and compared to loads obtained by calculation. (Author)

• Corporate Authors:

  Engineering Research Associates

  Toronto, ONo,   Canada 
• Authors:
  • Jobst, A L
  • Bandler, P A
• Publication Date: 1972-8

Media Info

• Pagination: 60 p.

Subject/Index Terms

• TRT Terms: Cycloidal propellers; Flow visualization; Mechanical loads; Propeller blades
• Old TRIS Terms: Propeller loading; Vertical axis propellers
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00044646
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: ERA-60-2 Final Rpt
• Contract Numbers: N00014-66-C-0191
• Files: TRIS
• Created Date: Sep 4 1973 12:00AM