4474 “Method for the Assessment of the Cavitation Performance of Marine Propellers”

“Method for the Assessment of the Cavitation Performance of Marine Propellers”, by Peter van Oossanen, Published in “International Shipbuilding Progress”, Vol. 22, No. 245, January 1975 (ID No. 4474).

This paper addresses the assessment of cavitation inception on marine propellers on the basis of the finding that in absence of boundary layer separation cavitation is first seen to occur in the region of laminar-turbulent transition. This result is adopted to derive an approximate relation for the inception location and for the corresponding value of the cavitation number. Results of cavitation studies on hydrofoils are used to then derive a relation for the type and chord-wise extent of cavitation and for the assessment of the influence thereof on lift and drag.

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