摘要
流体流经非流线型结构物时会发生涡旋脱落现象。利用CFD分析软件模拟研究了单根附属杆在不同位置对圆柱绕流流场特性的影响。结果表明:不同位置的附属杆对圆柱绕流流场影响方式不同,附属杆相对位置与来流方向之间的角度为0°、90°和180°时,对圆柱绕流流场的影响分别为引导来流分流、影响分离点和控制尾流。
The vortex shedding phenomenon will happen when fluid flowing through the non-stre- amlined structure. The influence of the vortex shedding characteristics around the cylinder struc- ture is analyzed when the single attached rod at different positions by numerical simulation of CFD software. The results show that the single attached rod effect the vortex shedding in the flow around a cylinder have different ways with different position, and when the angle between the relative posilion of al,ached rod and the the vortex shedding is that ：lead flow wake. flow direction is 0°,90° and to the flow diversion,affect 180°,the way of attached rod effeel the separalion point and conntol the
出处
《石油矿场机械》
2015年第4期5-8,共4页
Oil Field Equipment
基金
国家重点基础研究发展计划(973计划)课题"深海柔性结构的非线性流固耦合振动与破坏机理研究"(2011CB013702)
国家自然科学基金课题"基于广义积分变换法的深水立管涡激振动预报模型研究"(51409259)
关键词
附属杆
圆柱绕流
流场
数值模拟
affiliated rods
flow around a cylinder
flow field
numerical simulation
