https://scholars.lib.ntu.edu.tw/handle/123456789/611543
標題: | Parametric design and optimization of a pivoting S-type rudder for containerships | 作者: | Chen C.-W. Lin T.-Y. Chen B.-Y. Kouh J.-S. TSUNG-YUEH LIN |
關鍵字: | Computational fluid dynamics;Energy conservation;Fuel tanks;Interpolation;Optimization;Propellers;Propulsion;Rudders;Container ships;Experimental modeling;Non-uniform rational B-splines;Operational conditions;Parametric design;Propulsion simulation;Reynold averaged navier-stokes equations;Section profiles;Navier Stokes equations | 公開日期: | 2018 | 卷: | 26 | 期: | 6 | 起(迄)頁: | 749-763 | 來源出版物: | Journal of Marine Science and Technology (Taiwan) | 摘要: | This study proposes an energy-saving S-type rudder design to deal with the inhomogeneous inflow from a rotating propeller behind a containership. The S-type rudder was modelled parametrically using four-digit NACA foils as section profiles together with Non-uniform rational B-splines (NURBS) surface formulations. A three-stage optimization process is proposed to reduce the number of design iterations necessary to achieve an optimal design. The propulsion simulations were done via CFD software, which solves the hydrodynamics of viscous flow, as governed by the Reynold-averaged Navier-Stokes (RANS) equations. Validations were performed with experimental model tests, including hull resistance, propeller open-water performance, and propulsion in calm water. Finally, energy recovery for different operational conditions is controlled by an innovative pivoting mechanism. The results show that the optimized S-type rudder can reduce delivered horsepower by 1% to 3%. ? 2018 National Taiwan Ocean University. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060688972&doi=10.6119%2fJMST.201812_26%286%29.0001&partnerID=40&md5=04a1ace12464b99d7cc1e4dc47495b3d https://scholars.lib.ntu.edu.tw/handle/123456789/611543 |
DOI: | 10.6119/JMST.201812_26(6).0001 |
顯示於: | 工程科學及海洋工程學系 |
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