SERIES ON MODEL TESTS ON DUCTED PROPELLERS
Results of an investigation into nozzle shapes, reducing the flow rate through the propeller, are presented. The purpose of this reduction is to prevent the occurrence of cavitation. The investigation was carried out under Contract No. N62558-3960 of the U.S. Department of the Navy, David Taylor Model Basin, through its U.S. Navy European Research Contract Program. A theory is described for the numerical calculation of systematic series of nozzle shapes. The shape of the nozzles was chosen to produce ram pressures at the propeller plane in order to delay the onset of cavitation. Tunnel experiments were carried out with the above nozzles.
Netherlands Ship Model BasinWageningen, Netherlands
- van Manen, J D
- Oosterveld, MWC
- Publication Date: 1972
- Pagination: 83 p.
- TRT Terms: Cavitation (Mechanics); Cavitation erosion; Ducted propellers; Nozzles; Propellers; Shrouded propellers
- Subject Areas: Marine Transportation; Vehicles and Equipment;
- Accession Number: 00041277
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Final Rpt
- Contract Numbers: N62558-3960
- Files: TRIS
- Created Date: Feb 23 1973 12:00AM