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利用Maxwell方程直接数值计算表面包覆电极与磁极翼型产生的三维Lorentz力分布,将其加入到流体控制方程的动量方程中,采用脱体涡模拟方法对临界区雷诺数下受Lorentz力作用下翼型绕流场进行数值模拟,研究分析了电磁力作用系数和攻角对翼型绕流场结构及其升阻力系数的影响机理和规律。结果表明,Lorentz力可以有效地改善翼型周围的流场结构,达到减阻、增升、消涡以及延缓和抑制其失速的目的,因此是翼型的一种有效流动控制手段。
Using the Maxwell equation, the three-dimensional Lorentz force distribution generated by the surface covered electrode and the magnetic pole airfoil is directly calculated and added to the momentum equation of the fluid control equation. The Lorentz force under the Reynolds number of the critical region The numerical simulation of the airfoil around the flow field is carried out. The mechanism and law of the effect of the electromagnetic force and the angle of attack on the structure of the flow field around the airfoil and the drag coefficient are studied. The results show that the Lorentz force can effectively improve the flow field around the airfoil and achieve the purpose of drag reduction, increase, vortex elimination and delay and suppression of stalling. Therefore, Lorentz force is an effective flow control method for airfoil.