Back to Search
Start Over
Blade Section Design of Marine Propellers with Minimum Cavitation Induced Pressure Fluctuations
- Source :
- Journal of Physics: Conference Series. 656:012078
- Publication Year :
- 2015
- Publisher :
- IOP Publishing, 2015.
-
Abstract
- To minimize cavitation induced pressure fluctuations by marine propellers with minimum efficiency loss, the paper presents a new design and optimization method using a blade section design method. The sheet cavity volume variation on a two-dimensional blade section in quasi-steady condition has been simplified to a relation with only a limited number of non-dimensional parameters. This results in a fast prediction method of the cavity volume of a blade section passing a wake peak, using a pre-calculated database. This makes optimization feasible. The optimization method was applied to the propeller of a container ship. Extensive tests in a towing tank and a cavitation channel validated the reduction of pressure fluctuations: 33% reduction in the first blade frequency amplitude and 18% reduction in the second blade frequency amplitude, with the same open water efficiency.
Details
- ISSN :
- 17426596 and 17426588
- Volume :
- 656
- Database :
- OpenAIRE
- Journal :
- Journal of Physics: Conference Series
- Accession number :
- edsair.doi...........bf9f9095d66b268b78990512f74c4ae8