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http://dx.doi.org/10.3744/SNAK.2004.41.6.008

Flow and Performance Analysis of Waterjet Propulsion System  

Park Warn-Gyu (School of Mechanical Engineering, Pusan National University)
Jang Jin-Ho (School of Mechanical Engineering, Pusan National University)
Chun Ho-Hwan (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim Moon-Chan (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.41, no.6, 2004 , pp. 8-14 More about this Journal
Abstract
The numerical analysis of a waterjet propulsion system was performed to provide detail understanding of complicated flow phenomena including interactions of intake duct, rotor, stator, and contracted discharge nozzle. The incompressible RANS equations were solved on moving multiblocked grid system. To handle interface boundary between rotor and stator, the sliding multiblock method was applied. The numerical results were compared with experiments and good agreement was obtained. The complicated viscous flow features of the waterjet, such as secondary flow inside the intake duct, the recovery of axial flow by the role of the stator, and tip and hub vortex, etc. were well analyzed by the present simulation. The performance of thrust and torque was also predicted.
Keywords
Waterjet propulsor; RANS equations; Sliding multiblock technique; Propulsive performanance;
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