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NOISE AND PRESSURE IMPULSES FROM CAVITATING PROPELLERS: A COMPARATIVE STUDY ON TWO SHIPS IN FULL-SCALE AND MODEL SCALE

T. Munk, J U Romeling, S Spangenberg

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Abstract

Propeller-induced noise and pressure impulses were measured on two sister ships with different propellers, one with a high and one with a low cavitation level, and the results are discussed. The noise and pressure measurements were carried out in full-scale as well as in model scale. Correlation of the results led to a confirmation of the scaling law and a recommendation for the use of the model scale in future cavitation tests.

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What this paper is about

Propeller-induced noise and pressure impulses were measured on two sister ships with different propellers, one with a high and one with a low cavitation level, and the results are discussed. The noise and pressure measurements were carried out in full-scale as well as in model scale. Correlation of the results led to a confirmation of the scaling law and a recommendation for the use of the model scale in future cavitation tests.

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Available abstract

Propeller-induced noise and pressure impulses were measured on two sister ships with different propellers, one with a high and one with a low cavitation level, and the results are discussed. The noise and pressure measurements were carried out in full-scale as well as in model scale. Correlation of the results led to a confirmation of the scaling law and a recommendation for the use of the model scale in future cavitation tests.

Key concepts: Cavitation, Propeller, Scale (ratio), Noise (video), Full scale, Acoustics, Scale model, Scale effects

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NOISE AND PRESSURE IMPULSES FROM CAVITATING PROPELLERS: A COMPARATIVE STUDY ON TWO SHIPS IN FULL-SCALE AND MODEL SCALE — Research Paper | ScholarLens