摘要
为研究不规则柱体绕流的流体力学特性,介绍了国内外柱体绕流研究的相关进展与研究方法,然后运用数值模拟软件STAR-CCM+建立了4个二维模型,并在雷诺数Re=8×10~5和3.6×10~6两种情况下进行了数值模拟。通过对比普通圆柱体绕流和改变截面形状后的柱体的绕流效果,发现不规则柱体对绕流产生了一定的影响,能够延缓尾涡的脱落,效果显著。
In order to study the hydrodynamic characteristics of the irregular cylinder flow, this paper first intro-duced the related development and research methods of flow field around the column body at home and abroad, and then used numerical simulation software of STAR- CCM＋ to establish four two-dimensional models,which were nu-merically simulated at Reynolds number 8×10^5 and 3.6×10^6. By comparing the flow around the ordinary cylinder with the flow around the cylinder of changed shape,it is found that irregular cylinder has an effect on the flow and can delay the wake vortex shedding,and the effect is significant.
作者
张海鹏
林健峰
郭春雨
曹绪祥
张佐天
ZHANG Haipeng LIN Jianfeng GUO Chunyu CAO Xuxiang ZHANG Zuotian(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《应用科技》
CAS
2017年第4期1-4,共4页
Applied Science and Technology
基金
国家自然科学基金项目(51209048
41176074
51409063)
工信部高技术船舶科研项目(G014613002)
哈尔滨工程大学青年骨干教师支持计划(HEUCFQ1408)
关键词
不规则柱体绕流
圆柱绕流
数值模拟
涡激振动
卡门涡街
尾涡脱落
高雷诺数
二维模型
flow around an irregular cylinder
flow around a circular cylinder
numerical simulation
vortex induced vibration
Karman vortex street
wake vortex shedding
high Reynolds number
two-dimensional model
