| 空气垫在平底结构入水砰击中作用的仿真分析 |
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| 引用本文： | 陈震,肖熙. 空气垫在平底结构入水砰击中作用的仿真分析[J]. 上海交通大学学报, 2005, 39(5): 670-673 |
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| 作者姓名： | 陈震 肖熙 |
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| 作者单位： | 上海交通大学,船舶海洋与建筑工程学院,上海,200030;上海交通大学,船舶海洋与建筑工程学院,上海,200030 |
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| 摘 要： | 用仿真方法对平底结构的入水砰击问题进行了研究，建立了二维气水流场的有限元模型．考虑空气、重力等因素在砰击过程中的影响，描述了空气层与水面的混合情况以及平底结构入水瞬间空气层内各物理参数(密度、内能、压力等)的变化情况．讨论了自由液面的变化和飞溅效应对砰击压力的影响，并对砰击压力峰值产生的机理进行了探讨．
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| 关 键 词： | 平底结构 入水 空气垫 飞溅 仿真 |
| 文章编号： | 1006-2467(2005)05-0670-04 |
| 修稿时间： | 2004-04-20 |
Simulation Analysis on the Role of Air Cushion in the Slamming of a Flat-Bottom Structure |
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| CHEN Zhen,XIAO Xi. Simulation Analysis on the Role of Air Cushion in the Slamming of a Flat-Bottom Structure[J]. Journal of Shanghai Jiaotong University, 2005, 39(5): 670-673 |
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| Authors: | CHEN Zhen XIAO Xi |
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| Abstract: | Study on the water entry of a flat-bottom structure was carried out by means of a simulation method. Two dimensional finite element models were established and the factor of air cushion and gravity was considered. In the calculation the mixture status of air layer and water was observed and the variation of physical parameters such as density, specific internal energy (SIE) and pressure were recorded. And (also) the effect of free water surface and splash was analyzed and the production mechanism of the peak value of impact pressure was discussed. |
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| Keywords: | flat-bottom structure water entry air cushion splash simulation |
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