| 结构物出水过程中的自由液面变形研究 |
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| 引用本文： | 邹星,李海涛,宗智.结构物出水过程中的自由液面变形研究[J].船舶工程,2012,34(4):14-17. |
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| 作者姓名： | 邹星 李海涛 宗智 |
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| 作者单位： | 大连理工大学 船舶工程学院 运载工程与力学学部 工业装备结构分析国家重点实验室,辽宁大连,116024;大连理工大学 船舶工程学院 运载工程与力学学部 工业装备结构分析国家重点实验室,辽宁大连,116024;大连理工大学 船舶工程学院 运载工程与力学学部 工业装备结构分析国家重点实验室,辽宁大连,116024 |
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| 基金项目： | 创新研究群体科学基金:海洋环境灾害与结构安全防护(50921001);国家重点基础研究发展计划项目:复杂装备研发数字化工具中的计算力学和多场耦合若干前沿问题(2010CB832700) |
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| 摘 要： | 利用有限体积法( FVM)研究了圆柱形物体垂直出水的问题.物体以恒定速度垂直出水时,初始自由液面会受到物体的抬升作用而发生变形.自由液面的峰值变化与物体的初始深度有关,但当初始深度Y＞5R时其对液面变形的影响不变.研究还发现液面变形的峰值与物体的长度无关,与物体的头、尾部形状及宽度关系较大.头部平整的物体出水时的液面峰值很大,而头部尖锐的物体出水时液面峰值较小,在双30°锥角形下,液面可以看到明显的波纹.
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| 关 键 词： | 结构物出水 自由液面 液面变形 有限体积法 |
| 收稿时间： | 1/6/2012 11:20:45 AM |
| 修稿时间： | 2/29/2012 2:47:57 PM |
Research on the deformation of interface during the water exit of an axis-symmetric body |
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| Zou Xing,Li Haitao and Zong Zhi.Research on the deformation of interface during the water exit of an axis-symmetric body[J].Ship Engineering,2012,34(4):14-17. |
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| Authors: | Zou Xing Li Haitao and Zong Zhi |
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| Institution: | (State Key Laboratory of Structural Analysis for Industrial Equipment,Faculty of Vehicle Engineering and Mechanics,College of Marine Engineering,Dalian University of Technology,Liaoning Dalian 116024,China) |
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| Abstract: | The problem of a cylindrical body getting out of water vertically is studied with the finite volume method(FVM).When a body gets out of a free surface at constant speed,the initial free surface deforms by the lifting effect.The change of the apex of the free surface is relative to the initial depth of the body,but when the initial depth Y>5R,the transforming influence is not perceptible.The length of body has no effect on the deformation of the free surface,but big effect on the tip and aft shape as well as the width.The surface apex of a body with a neat head is big,while a sharp head has small apex.For a body has 30-degree conical tip,a remarkable wave can be seen on the water. |
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| Keywords: | water exit of a structure free surface surface deformation finite volume method(FVM) |
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