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Dynamic Positioning Thruster Near Wake Hydrodynamic Characteristics at Near Bollard Pull
journal contribution
posted on 2023-05-17, 00:45 authored by El Lababidy, S, Neil Bose, Liu, P, Walker, DThe knowledge of the hydrodynamic characteristics and momentum effects of the flow of dynamic positioning (DP) thrusters are important factors in the design of structures around the DP thrusters and in improving DP system reliability. In the present study, the flow field around a DP thruster model was precisely measured in a cavitation tunnel using a two-component laser Doppler velocimetry (LDV) system. These experiments were carried out with and without a nozzle at three different axial planes up to 1.5 diameters downstream, and the results are presented here for a pitch/diameter ratio of 1.2 at near bollard pull operating conditions (J = 0.4 and J = 0.45). This paper shows and compares the results of the DP thruster near wake hydrodynamic and momentum characteristics when operating with and without a nozzle at two different low advance coefficient values.
History
Publication title
Journal of Ship ResearchVolume
53Pagination
48-58ISSN
0022-4502Department/School
Australian Maritime CollegePublisher
Soc Naval Arch Marine EngPlace of publication
601 Pavonia Avenue, Jersey City, USA, Nj, 07306Rights statement
Copyright Society of Naval Architects and Marine Engineers (SNAME) 2009Repository Status
- Restricted