| 航行体有攻角出水全过程数值模拟 |
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| 引用本文： | 王一伟,黄晨光,杜特专,刘维玮.航行体有攻角出水全过程数值模拟[J].水动力学研究与进展(A辑),2011,26(1). |
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| 作者姓名： | 王一伟 黄晨光 杜特专 刘维玮 |
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| 作者单位： | 中国科学院力学研究所水动力学与海洋工程重点实验室,北京,100190 |
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| 摘 要： | 水下航行体高速出水时,空泡溃灭会产生较大的弯矩载荷,是其结构强度的主要设计依据.本文基于计算流体方法与结构动力学方法的单向耦合,建立了航行体有攻角出水全过程数值模拟方法,并针对抽象的典型工况进行了较大规模的并行计算,最终得到了航行体关键截面的全时程载荷响应.进一步通过分析航行体空泡形状和表面压力的演化特征,解释了航行体出水载荷的直接形成原因.
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| 关 键 词： | 出水全过程 空化 溃灭 载荷机理 |
Numerical simulation of a submerged body exiting from water with an attack angle |
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| WANG Yi-wei,HUANG Chen-guang,DU Te-zhuan,LIU Wei-wei.Numerical simulation of a submerged body exiting from water with an attack angle[J].Journal of Hydrodynamics,2011,26(1). |
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| Authors: | WANG Yi-wei HUANG Chen-guang DU Te-zhuan LIU Wei-wei |
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| Affiliation: | WANG Yi-wei,HUANG Chen-guang,DU Te-zhuan,LIU Wei-wei(Key Laboratory for Hydrodynamics and Ocean Engineering,Institute of Mechanics,Chinese Academy of Sciences Beijing 100190,China) |
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| Abstract: | Large bending moment is produced when submerged bodies exiting from water with an angle of attack,which is the main design basis of structure strength.Numerical simulation process is established based on the single-direction couple of CFD and CSD methods.A typical case is simulated by large-scale parallel computing,and full-time response on key sections is finally acquired.By further study on the cavitating bubble and surface pressure,the mechanism of load on submerged bodies when exiting from water is expl... |
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| Keywords: | whole process of exiting from water cavitaion collapse mechanism of load |
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