On the hydrodynamic loading of marine cycloidal propeller during maneuvering |
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| Institution: | 1. Indian Institute of Technology, Kharagpur, India;2. KIIT University, Bhubaneswar, India;1. State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China;2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai, 200240, China;3. Department of Naval Architecture and Marine Engineering, University of Strathclyde, Glasgow, G11XQ, United Kingdom;1. Department of Mechanical Engineering, Purdue University, West Lafayette, USA;2. Indian Institute of Technology, Kharagpur, India;1. School of Navigation, Wuhan University of Technology, Wuhan, 430063, China;2. Hubei Key Laboratory of Inland Shipping Technology, Wuhan, 430063, China;3. National Engineering Research Center for Water Transport Safety, Wuhan, 430063, China |
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| Abstract: | In marine cycloidal propeller (MCP), the inflow velocity vector to the propeller blade continuously changes at different blade orbit angle. Earlier marine cycloidal propellers were installed on ships that mainly performed towing operations. Recently marine cycloidal propellers are being installed on large naval vessels, which spend lot of their operating hours in cruising. Therefore, the hydrodynamic loading on the blades both during cruising maneuvers need to be investigated. The flow characteristics around the propeller blade are computed numerically by panel method. Viscous effects on the flow are then estimated by boundary layer technique. The effect of rotating disc on viscous fluid is also investigated. The corrected flow characteristics are then used for estimating the hydrodynamic loading. The operating conditions that are critical for the loading of the blade and the support structure and some aspects of the maneuvering simulation at cruising speed are investigated. |
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| Keywords: | Boundary layer Cycloidal propeller Hydrodynamic Maneuvering Unsteady flow |
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