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Detailed analysis of the wake of a DP thruster emphasizing comparison between LDV and SPIV techniques

Lookup NU author(s): Professor Pengfei LiuORCiD

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Abstract

To provide experimental data on the hydrodynamic characteristics and features of dynamic positioning (DP) thrusters under variable operating conditions, wake measurements were performed on a DP thruster model using 2D laser Doppler velocimetry (LDV) and stereoscopic particle image velocimetry (SPIV). These tests were performed with and without a nozzle and over a range of advance coefficient values including the bollard pull condition. In this paper a detailed analysis of the hydrodynamic characteristics of the wake at a plane equal to a distance of 0.5 diameters downstream from the thruster, at advance coefficient values of 0, 0.4, and 0.45 are presented for both the LDV and SPIV measurements showing a comparison between the results of each technique. The effect of the duct and of changes in the advance coefficient values is presented in this paper. Copyright © 2006 by ASME.

Publication metadata

Author(s): El Lababidy S, Bose N, Liu P, Di Felice F

Publication type: Article

Publication status: Published

Journal: Journal of Offshore Mechanics and Arctic Engineering

Year: 2005

Volume: 128

Issue: 2

Pages: 81-88

Print publication date: 01/05/2006

Online publication date: 04/11/2005

ISSN (print): 0892-7219

ISSN (electronic): 1528-896X

Publisher: ASME

URL: https://doi.org/10.1115/1.2185680

DOI: 10.1115/1.2185680

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