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。
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.
出处
《船舶工程》
CSCD
北大核心
2012年第4期14-17,共4页
Ship Engineering
基金
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)
关键词
结构物出水
自由液面
液面变形
有限体积法
water exit of a structure
free surface
surface deformation
finite volume method （FVM）
