| 海上浮式结构物的水动力仿真研究 |
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| 引用本文： | 韩翔希,邱昂,范少涛,王海璎.海上浮式结构物的水动力仿真研究[J].船舶工程,2017,39(4):39-43. |
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| 作者姓名： | 韩翔希 邱昂 范少涛 王海璎 |
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| 作者单位： | 钦州学院广西船舶数字化设计与先进制造工程技术研究中心,广西钦州535099;钦州学院机械与船舶海洋工程学院,广西钦州535099;广东省航运科学研究所,广州,510000;中国能源建设集团广东省电力设计研究院有限公司,广州,510663;中国船级社广州分社,广州,510000 |
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| 基金项目： | 钦州市科学研究与技术开发计划项目（20164405）；广西船舶数字化设计与先进制造工程技术研究中心课题资助；广西重点学科船舶与海洋工程资助；钦州市船舶先进设计制造重点实验室课题资助（2016MADMB04）；钦州学院高级别培育项目：海洋立管涡激振动机理及其抑制研究（2016PY-SJ08） |
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| 摘 要： | 基于粘性计算流体力学的方法建立三维数值波浪水池,模拟有限振幅波的传播,并计算三维球体在规则波环境下所受的波浪力。采用两相不可压的RANS方程求解非定常不可压缩粘性流体,并采用流体体积函数(VOF)法对自由面进行动态模拟。通过编写用户自定义函数(UDF)设置边界入口速度和波高,实现在波浪水池尾部1~2倍波长区域消波,最终求出有限振幅波的模拟结果以及规则波中三维球体所受的波浪力,该结果与势流理论边界元法得到的结果在趋势上吻合良好。该研究方法为模拟分析其他海洋结构物在波浪中的水动力奠定基础,丰富与扩展了数值波浪水池的应用。
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| 关 键 词： | 浮式结构物 CFD 波浪力 数值波浪水池 |
| 收稿时间： | 2016/7/9 0:00:00 |
| 修稿时间： | 2017/4/12 0:00:00 |
Hydrodynamic Forces Prediction for Marine Structures Based on Numerical Wave Tank |
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| Han Xiangxi,Qiu Ang,Fan Shaotao and Wang Haiying.Hydrodynamic Forces Prediction for Marine Structures Based on Numerical Wave Tank[J].Ship Engineering,2017,39(4):39-43. |
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| Authors: | Han Xiangxi Qiu Ang Fan Shaotao and Wang Haiying |
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| Institution: | Guangxi Engineering Technology Research Center of Marine Digital Design and Advanced Manufacturing,Qinzhou University,Qinzhou,Guangdong shipping science research institute,Guangzhou,China Energy Engineering Group Guangdong Electric Power Design Institute Co,Ltd,Guangzhou Guangdong, |
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| Abstract: | This study establishes three-dimensional (3D) numerical wave tank based on the theory of viscous flow to simulate the propagation of finite amplitude wave and hydrodynamic forces of a 3D sphere. The governing equations are discretized by finite volume method, and volume of fluid method is adopted to capture the nonlinear free surface by writing user-defined functions to set inlet boundary. Wave height and the outgoing waves are dissipated inside an artificial damping zone located at the rear part (about 1-2 wave lengths) of the wave tank. The numerical simulation results are compared with theoretical results, and show good agreement with them. This research can be used to further analyze and predict hydrodynamic performance of marine floating structures in waves and help to extend the applications of numerical wave tank. |
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| Keywords: | Floating structures Computational fluid dynamics Wave forces Numerical wave tank |
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