基于Magnus效应的旋转圆柱PIV实验平台设计

Design of PIV Experiment Platform for Rotating Cylinder Based on Magnus Effect

为了形象具体地展现出基于Magnus效应旋转圆柱尾部流场变化情况,让学生直观地去理解学习Magnus效应及旋转圆柱尾部流场涡从产生到消失的演化过程,设计了一种基于Magnus效应的旋转圆柱PIV实验教学平台。该平台采用了先进的粒子测速图像技术(PIV),搭载于循环水池试验系统上,能够研究来流速度、圆柱旋转速度、圆柱类型等对圆柱不同截面尾部流场变化的影响,并且通过尾部流场变化来分析旋转圆柱的水动力性能。通过形象具体的流场图像激发学生的学习兴趣,培养动手能力,提高创新能力,为未来科研探索奠定良好的基础。

In order to visually show the changes in the tail flow field of the rotating cylinder based on the Magnus effect,let students visually understand and study the Magnus effect and the evolution process of the tail flow field vortex of the rotating cylinder from the generation to the disappearance,a particle image velocimeter(PIV)experiment teaching platform for rotating cylinder based on the Magnus effect is designed.The platform adopts advanced PIV technology and is mounted on a circulating tank test system.It can be used to study the influence of the inflow speed,cylinder rotation speed,cylinder type on the change of the tail flow field of different cross-sections of the cylinder,and analyze the hydrodynamic performance of a rotating cylinder through the changes in the tail flow field.The purpose of this experimental platform is to stimulate students’interest in learning through vivid and specific images of the flow field,cultivate their hands-on ability,improve their innovation ability,and lay a good foundation for future scientific research and exploration.