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- W4247026503 abstract "An experimental study is carried out in a cavitation tunnel on a propeller operating downstream of a non-uniform wake. The goal of this work is to establish quantitative correlations between the near pressure field and the cavitation pattern that takes place on the propeller blades. The pressure field is measured at the walls of the test section and in the near wake of the propeller, and is combined with quantitative high-speed image recording of the cavitation pattern. Through simple harmonic analysis of the pressure data and image processing techniques that allow to retrieve the cavitation extension and volume, we discuss the potential sources that generate the pressure fluctuations. Time correlations are unambiguously established between pressure peak fluctuations and cavitation collapse events, based upon the Rayleigh collapse time. Finally, we design a model to predict the cavitation-induced pressure fluctuations from the derivation of the cavitation volume acceleration. This simple model demonstrates a remarkable agreement with the actual pressure field." @default.
- W4247026503 created "2022-05-12" @default.
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- W4247026503 date "2016-08-29" @default.
- W4247026503 modified "2023-09-29" @default.
- W4247026503 title "Propeller Cavitation in Non-Uniform Flow and Correlation with the Near Pressure Field" @default.
- W4247026503 doi "https://doi.org/10.20944/preprints201608.0224.v1" @default.
- W4247026503 hasPublicationYear "2016" @default.
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