| Author | Search for: El Lababidy, S. A.; Search for: Bose, N.; Search for: Liu, P.1; Search for: Walker, D. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Ocean Technology
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| Format | Text, Article |
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| Subject | dynamic positioning (DP) thruster; laser Doppler velocimetry (LDV) measurements; propeller wake momentum estimation; propeller wake thrust estimation; velocity distribution; wake hydrodynamic characteristics |
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| Abstract | The 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. |
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| Publication date | 2009-03 |
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| Publisher | Society of Naval Architects and Marine Engineers |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23004746 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 7da58f97-b1ed-4516-80bc-cb2403937a2e |
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| Record created | 2018-12-17 |
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| Record modified | 2020-04-16 |
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