作　　者： ; ; ; ; ;

机构地区： 南京理工大学动力工程学院瞬态物理国家重点实验室

出　　处： 《飞行力学》 2007年第1期76-79,共4页

摘　　要： 为考察包覆电磁激活板的翼型体绕流特性,采用数值模拟的方法研究了低雷诺数下电磁力对翼型体流场结构和绕流过程的影响,探讨了不同迎角和不同电磁力大小对翼型体尾流涡街形态和流体边界层结构的影响。计算结果表明,作用于翼型体表面的电磁力可以明显改变流体边界层的结构,抑制边界层分离,并有效提高翼型体的升力。 To examine the nature of wake around an airfoil covered by an electromagnetic actuator, a two dimensional low Reynolds number fluid structure and wake around the airfoil controlled by electromagnetic body force have been investigated using a numerical approach. The effects of angle of attack and electromagnetic force on the flow wake and boundary layer structure are discussed. The calculated results show that the electromagnetic force acting on the surface of the airfoil can obviously improve the boundary layer structure and suppress the boundary layer separation. Furthermore, the electromagnetic force is capable of increasing the lift of the airfoil

关 键 词： 电磁力 边界层 翼型体绕流

领　　域： [理学] [理学]