Evaluation of a dynamic positioning thruster wake using laser doppler velocimetry

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Conference23rd International Conference on Offshore Mechanics and Arctic Engineering, 20-25 June 2004, Vancouver, BC
SubjectDynamic positioning thruster; LDV measurements; Near wake evaluation & Nozzle effect
AbstractTo provide information on the wake characteristics of Dynamic Positioning (DP) thrusters when operating with and without a nozzle under varied operating conditions, experiments were done on a ducted propeller model in a cavitation tunnel. The propeller flow field was measured with a two-component Laser Doppler Velocimetry (LDV) system, up to 1.5 diameters downstream. These experiments were carried out with and without the nozzle, and the results are presented here for a pitch/diameter ratio of 1.2 and an advance coefficient of 0.4. This paper shows and compares the results of the DP thruster near wake hydrodynamic characteristics obtained by the LDV system when operating with and without a nozzle.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number6055
NPARC number8896228
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Record identifier696884c3-4690-4243-b7ef-38827e8f1392
Record created2009-04-22
Record modified2016-05-09
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