Abstract
The report presents a model testing technique to predict cavitation erosion. The method is based on fitting a piece of soft, polished aluminium flush with the eroding surface. After a relatively short time of exposure to eroding cavitation in the cavitation tunnel the aluminium surface becomes rough. This roughness is measured, and it represents a quantitative measure of the erosion intensity.
Various results from systematic tests with erosion in a propeller duct are presented.
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