MULTI-PURPOSE DUCTED CP-PROPELLERS, SOME DESIGN AND OPERATION PROBLEMS
The aim of this paper is to explore some of the difficulties that can arise at the design stage and operation of multipurpose ducted controllable pitch (CP) propellers. The most significant problems are seen to be the contradictory requirements of bollard pull and push forces, and the simultaneous demands of transit conditions with full or reduced power that must be met. Observations and analyses reported are based on investigations carried out in the cavitation tunnel and towing tank at SSPA Maritime Consulting, Goteborg, Sweden, with a number of propeller and duct models.
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Supplemental Notes:
- Conference paper
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Authors:
- BJARNE, E
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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: 8p.+discuss.
Subject/Index Terms
- TRT Terms: Bollards; Cavitation (Mechanics); Cavitation erosion; Controllable pitch propellers; Ducted propellers; Hulls; Propellers
- Uncontrolled Terms: Model tests
- Geographic Terms: Sweden
- Old TRIS Terms: Bollard pull; Hull propeller interaction; Propeller efficiency
- Subject Areas: Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 00658835
- Record Type: Publication
- Source Agency: Maritime Technical Information Facility
- Files: TRIS
- Created Date: Jul 21 1994 12:00AM