Abstract
Propeller designers often need to base their design on thenominal model scale wake distribution, because the effectivefull scale distribution is not available. The effects of suchincomplete design data on cavitation performance is examinedin this paper. The behind-ship cavitation performanceof two propellers is evaluated, where the cases consideredinclude propellers operating in the nominal model and fullscale wake distributions and in the effective wake distribution,also in model and full scale. The method for theanalyses is a combination of RANS for the ship hull anda panel method for the propeller flow, with a coupling ofthe two for the interaction of ship and propeller flows. Theeffect on sheet cavitation due to the different wake distributionsis examined for a typical full-form ship. Results showconsiderable differences in cavitation extent, volume, andhull pressure pulses.
| Original language | English |
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| Title of host publication | Proceedings of the Fifth International Symposium on Marine Propulsors - smp'17 |
| Publisher | VTT Technical Research Centre of Finland |
| Publication date | 2017 |
| Pages | 331-337 |
| ISBN (Print) | 978-951-38-8606-6, 978-951-38-8607-3, 978-951-38-8608-0 |
| Publication status | Published - 2017 |
| Event | Fifth International Symposium on Marine Propulsors - Helsinki, Finland Duration: 12 Jun 2017 → 15 Jun 2017 |
Conference
| Conference | Fifth International Symposium on Marine Propulsors |
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| Country | Finland |
| City | Helsinki |
| Period | 12/06/2017 → 15/06/2017 |
Keywords
- Propeller Cavitation
- Wake Scaling
- Effective Wake
- RANSBEM Coupling