Preprint Article Version 1 This version is not peer-reviewed

Experimental Investigation of propeller Wake Velocity Field for the Major Factors Affecting Propeller Wake Wash

Version 1 : Received: 30 March 2018 / Approved: 1 April 2018 / Online: 1 April 2018 (16:07:01 CEST)

A peer-reviewed article of this Preprint also exists.

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. 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.

Journal reference: J. Mar. Sci. Eng. 2018, 6, 50
DOI: 10.3390/jmse6020050

Abstract

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 influences of operational factors affecting a propeller wake velocity field were investigated. The experiment was done on 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.

Subject Areas

ship’s propeller jet; mean axial velocity of flow; prediction equations

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