圆柱绕流实验探索与设计  

Experimental Exploration and Design of Flow around a Cylinder

作　　者：邵明玉 马驰骋[1] 华珍[1] 汪志军 SHAO Mingyu;MA Chicheng;HUA Zhen

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255000

出　　处：《科技创新与应用》2022年第8期24-26,共3页Technology Innovation and Application

摘　　要：圆柱绕流是一个既基础又复杂的流动问题,在不同的雷诺数下会呈现出附面层转捩和分离、旋涡生成和脱落、旋涡相关干扰现象,涉及物体绕流阻力的组成和减阻等问题。针对目前教学实验设备的不足,讨论并设计圆柱绕流实验装置,通过流场可视化方法观察圆柱绕流的流动特性,并借助测压计测量圆柱表面的压强分布。实验结果表明,实验设备可基本实现设计目的,教学中效果良好。The flow around a cylinder is a basic and complex flow problem.Given different Reynolds numbers,there will be boundary layer transition and separation,vortex generation and shedding,and vortex-related interference,which involves the composition of flow resistance and drag reduction.In view of the deficiency of the current teaching experimental equipment,the experimental device of the flow around the cylinder is discussed and designed.The flow characteristics of the flow around the cylinder are observed by the method of flow field visualization,and the pressure distribution on the surface of the cylinder is measured with the help of manometer.The experimental results show that the experimental equipment can achieve the purpose of design,and the effect is satisfying in teaching.

关 键 词：圆柱绕流 卡门涡街 压差阻力 

分 类 号：O357[理学—流体力学]