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Experimental Investigation of Propeller Wake Velocity Field to Determine the Major Factors Affecting Propeller Wake Wash

Faculty of Engineering and Applied Science, Memorial University of Newfoundland, 40 Arctic Ave, St. John’s, NL A1B 3X7, Canada
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J. Mar. Sci. Eng. 2018, 6(2), 50; https://doi.org/10.3390/jmse6020050
Received: 30 March 2018 / Revised: 23 April 2018 / Accepted: 1 May 2018 / Published: 7 May 2018
(This article belongs to the Section Ocean Engineering)
The propeller jet from a ship has a significant component directed upwards towards the free surface of the water, which can be used for ice management. This paper describes a comprehensive laboratory experiment where the operational factors affecting a propeller wake velocity field were investigated. The experiment was conducted using a steady wake field to investigate the characteristics of the axial velocity of the fluid in the wake and the corresponding variability downstream of the propeller. The axial velocities and the variability recorded were time-averaged. Propeller rotational speed was found to be the most significant factor, followed by propeller inclination. The experimental results also provide some idea about the change of the patterns of the mean axial velocity distribution against the factors considered for the test throughout the effective wake field, as well as the relationships to predict the axial velocity for known factors. View Full-Text
Keywords: ship’s propeller jet; mean axial velocity of flow; prediction equations ship’s propeller jet; mean axial velocity of flow; prediction equations
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MDPI and ACS Style

Amin, M.A.; Colbourne, B.; Veitch, B. Experimental Investigation of Propeller Wake Velocity Field to Determine the Major Factors Affecting Propeller Wake Wash. J. Mar. Sci. Eng. 2018, 6, 50.

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