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对零净质量射流致动器的流场和有零净质量射流时翼型的绕流流场进行了数值模拟,分析了动网格与几何守恒率、边界条件、湍流模型对零净质量射流致动器流场计算的影响,分析了零净质量射流的速度幅值和驱动频率对翼型增升效果的影响。研究结果表明,在复杂计算中可以对能动部件的边界作赋值处理;随着射流速度幅值的增加,翼型的平均升力系数和阻力系数都要增加;射流频率对升力的影响呈非线性。
Numerical simulations of the flow fields of the zero net mass jet actuator and of the airfoil with zero net mass jet were carried out. The effects of moving grids and geometric conservation rates, boundary conditions, turbulence model on zero net mass jet The influence of velocity and driving frequency of zero net mass jet on the effect of airfoil lift is analyzed. The results show that the boundary of active components can be assigned in complex calculations. The average lift coefficient and drag coefficient of airfoils increase with the increase of jet velocity. The influence of jet frequency on lift is nonlinear.