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

journal contribution
posted on 2023-05-16, 19:55 authored by El Lababidy, S, Neil Bose, Liu, P, Di Felice, F
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.

History

Publication title

Journal of Offshore Mechanics and Arctic Engineering

Volume

128

Pagination

81-88

ISSN

0892-7219

Department/School

Australian Maritime College

Publisher

ASME International

Place of publication

United States

Repository Status

  • Restricted

Socio-economic Objectives

Oceanic processes (excl. in the Antarctic and Southern Ocean)

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