Cavitation Model and Full-Scale Waterjet Propulsors

The role and effects of cavitation in model and full-scale waterjet propulsors are reviewed, for conventional and inducer pumps, with flush and Pitot inlets. The special problems of model testing when air ingestion is expected in the full-scale installation are briefly discussed. The methods of scaling model test results to provide full-scale performance predictions when cavitation is present are touched upon, concerning the need for new standards.