| 基于CFD方法的船体下水水动力分析 |
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| 引用本文： | 王文华,王言英.基于CFD方法的船体下水水动力分析[J].大连海事大学学报(自然科学版),2009,35(3). |
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| 作者姓名： | 王文华 王言英 |
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| 作者单位： | 大连理工大学船舶工程学院,辽宁大连,116024 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2006AA09A104) |
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| 摘 要： | 为给船体下水提供水动力参数,采用计算流体动力学(CFD)方法对船体从船台上纵向重力式下水过程进行动力学分析.计算每一时刻的流场压强和船体所受水作用力(矩),并通过求解船体运动方程获得船体运动的速度和滑程.数值预报结果与经验公式以及试验比较均表明,该方法计算所得运动参数与试验偏差较小,可满足工程精度要求.
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| 关 键 词： | 船舶 纵向重力式下水 计算流体动力学(CFD) 船体运动方程 速度和滑程 |
Dynamic analysis for ship launching based on CFD method |
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| WANG Wen-hua
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WANG Yan-ying.Dynamic analysis for ship launching based on CFD method[J].Journal of Dalian Maritime University,2009,35(3). |
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| Authors: | WANG Wen-hua WANG Yan-ying |
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| Institution: | WANG Wen-hua,WANG Yan-ying(School of Naval Architecture , Ocean Engineering,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | To supply hydrodynamic parameters for ship launching,computational fluid dynamics(CFD) method was used to analyze the process of longitudinal gravity launching for ship from a slipway.The fluid pressure and force(moment) on ship were calculated at each time,and the velocity and displacement of ship were achieved by solving motion equations.Comparing with the empirical formula method,the results of the proposed method agree well with the experiment data,which satisfies engineering precision requirements. |
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| Keywords: | ship longitudinal gravity launching computational fluid dynamics(CFD) motion equations velocity and displacement |
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