SRI・B型プロペラの不均一流中キャビテーション性能

概要

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The cavitation problems such as vibration, noise and cavitation erosion have become more and more important. Especially, cavitation erosion must be avoided because it may cause damage on a propeller blade. This paper deals with an investigation into the effect of the non-uniformity of wake field on cavitation erosion Cavitation tests by paint technique on twelve propeller models having different geometrical feature were performed in three kinds of wake fields. As the results of the tests, the effects of the geometrical feature of propellers and steepness of circumferential wake distribution on cavitation erosion were made clear. Furthermore, using the results of the tests and pressure distribution on the propeller blade calculated by lifting surface theory, a new criterion for the appearance of cavitation erosion was given.
独立行政法人海上技術安全研究所の論文
1991-09-30