| 不可压缩液体中自由气核分叉特性研究 |
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| 引用本文： | 雷学武.不可压缩液体中自由气核分叉特性研究[J].舰船科学技术,2009,31(2). |
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| 作者姓名： | 雷学武 |
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| 作者单位： | 湖南城建职业技术学院,湖南湘潭,411001 |
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| 摘 要： | 空化气泡会引起强烈的声辐射和舰船壳体振动,自由气核振动的跨临界分叉研究对寻求空化气泡的生成机理具有重要意义.通过建立不可压缩液体中自由气核的振动模型,由中心流形定理对该振动模型进行约化,得出中心流形上的跨临界分叉方程,通过该振动模型的分叉研究,提出了产生气泡的新机理,并进行了仿真实验加以验证.仿真结果表明,跨临界分叉是自由气核产生气泡的一条途径.
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| 关 键 词： | 自由气核 振动模型 跨临界分岔 气泡 |
Research on the bifurcation characteristic of free gas nucleus in incompressible liquid |
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| LEI Xue-wu.Research on the bifurcation characteristic of free gas nucleus in incompressible liquid[J].Ship Science and Technology,2009,31(2). |
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| Authors: | LEI Xue-wu |
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| Institution: | Hunan Urban Construction College;Xiangtan 411001;China |
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| Abstract: | Gas bubbles can cause shell vibration and sound radiation,it is very important the supercritical bifurcation characteristic study of free gas nucleus to search bubble generating mechanism.The oscillation models of free gas nucleus in incompressible liquid were established,the supercritical bifurcation equation on center manifold is obtained through reducing the nonlinear oscillation system of free gas nucleus by center manifold theory.The bifurcation mechanism of bubble generating is obtained after studying... |
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| Keywords: | free gas nucleus oscillation models supercritical bifurcation bubble |
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