【作者】 周本谋； 范宝春； 陈志华； 李鸿志；

【Author】 ZHOU Ben-mou FAN Bao-chun CHEN Zhi-hua LI Hong-zhi (Key laboratory of transient physics,NUST,Nanjing 210094,China)

【机构】 南京理工大学 瞬态物理重点实验室；

【摘要】 综述分析了电磁力对圆柱绕流控制研究的研究成果。电磁场在导电的流体边界层上产生的电磁体积力可以有效的改变边界层的结构,控制边界层的流动分离,从而实现对流场的控制。在一定的条件下,流体边界层上的电磁力对流体边界层具有显著的加速与减速控制作用效果,可以改变圆柱绕流边界层的流动状态。作为流场主动控制方法之一,采用流体边界层上的电磁体积力可以十分方便而有效地实现流场中消涡减阻与消涡减震的控制目的。更多还原

【Abstract】 The research achievements of the circular-cylinder flow controlled by the electromagnetic forces(Lorentz force,i.e.LF)have been summarized.The structure of the flow boundary layer may be modified by the electromagnetic body forces,which be generated by electromagnetic fields and be localized around on the electric liquid boundary layers,and the flow separation from the surface of the cylinder may be controlled effectively by LE and the flow controlling may be achieved.For certain conditions,the controlling effects of flow boundary layer speedup and slowdown have been conducted obviously by LF and the state of the circular-cylinder flow boundary layer may be changed.The aims for the vortex-suppression,the drag-reduction and the vibration-absorption have been obtained quite expediently as introducing one of the active methods for flow controlling by means of electromagnetic force.更多还原