https://scholars.lib.ntu.edu.tw/handle/123456789/611544
標題: | Investigation of the seakeeping performance of twin hull vessels by different computational methods [以不同計算方法研究雙體船的耐波性能] | 作者: | Lin C.-T. Hsieh Y.-W. Lu L. Hsin C.-Y. Lin T.-Y. Lin C.-W. TSUNG-YUEH LIN |
關鍵字: | Computational methods;Finite element method;Hulls (ship);Navier Stokes equations;Numerical methods;Ocean currents;Sailing vessels;Seakeeping;Turbomachine blades;Viscous flow;Current turbines;Hydrodynamic characteristics;Kuroshio;RANS;Resonance frequencies;Reynolds - Averaged Navier-Stokes;Seakeeping performance;Verification-and-validation;Boundary element method | 公開日期: | 2018 | 卷: | 37 | 期: | 3 | 起(迄)頁: | 127-136 | 來源出版物: | Journal of Taiwan Society of Naval Architects and Marine Engineers | 摘要: | The seakeeping performances of wave piercing high speed catamaran (CAT-I) was computed and analyzed by different computational methods in this paper. The purpose is to investigate the hydrodynamic characteristics of twin hull vessels for installing the motion suppressing devices such as RCS (riding control system). The potential flow method and viscous flow RANS (Reynolds Averaged Navier-Stokes) method were used for computations. The comparisons of results from different computational methods serve two objectives. The first one is for the verification purpose to ensure the accuracy of computations. Secondly, by comparing results with experimental data, the results not only show the numerical errors, but also reveal the different features of each method. For example, the viscous and nonlinear effects of forces and flow field can thus be identified. From the preliminary results, the comparisons between numerical predictions and experimental data show a good agreement for seakeeping performances, as well as some differences near the resonance frequencies. Overall, the viscous flow RANS method demonstrates better predictions in seakeeping based on the verification and validation analysis. ? 2018 Taiwan Society of Naval Architects and Marine Engineers. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059948184&partnerID=40&md5=135e66ef27d915ad66b073f244a85db9 https://scholars.lib.ntu.edu.tw/handle/123456789/611544 |
顯示於: | 工程科學及海洋工程學系 |
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