This paper reports an investigation of gust load alleviation using Circulation Control for a three-dimensional wing including aerodynamic and structure interaction. The Field Velocity Method is introduced to the unsteady Reynolds averaged Navier–Stokes solutions for gust response simulations. Structural dynamic equations of motion are coupled with the unsteady Reynolds averaged Navier–Stokes solutions to consider the aeroelastic effects due to the gust response. The effects of gust load alleviation on the BAH wing using Circulation Control are tested under typical ‘one-minus-cosine’ gust profiles from certification specification defined by European Aviation Safety Agency. The results show a promising capability of Circulation Control for gust load alleviation as significant gust load alleviation effects have been achieved for both the rigid and elastic BAH wings in the test cases. For the BAH wing considering aeroelasticity, the displacement oscillations induced by gusts have been effectively suppressed by Circulation Control. The results also show that Circulation Control has the fast frequency response characteristics, where more than 50% of the total change in lift coefficient can be obtained within the non-dimensional time s =$\frac{{\mathbf{U}}_{\mathit{\infty }}\mathbf{t}}{\overline{\mathbf{c}}}=1$.

本文报告了对 3D 机翼使用循环控制来减轻阵风载荷的研究，包括空气动力学和结构相互作用。场速度方法被引入到用于阵风响应模拟的非定常雷诺平均 Navier-Stokes 解中。结构动力学运动方程与非定常雷诺平均 Navier-Stokes 解相结合，以考虑由于阵风响应引起的气动弹性效应。在欧洲航空安全局定义的认证规范中典型的“一负余弦”阵风剖面下测试了使用循环控制对 BAH 机翼的阵风载荷减轻的影响。结果表明，循环控制在缓解阵风荷载方面具有良好的能力，因为在测试案例中，刚性和弹性 BAH 机翼都实现了显着的阵风荷载缓解效果。对于考虑气动弹性的 BAH 机翼，Circulation Control 有效抑制了阵风引起的位移振荡。结果还表明，Circulation Control 具有快速的频率响应特性，在无量纲时间 s = 内可以获得超过 50% 的升力系数总变化$\frac{{\mathbf{你}}_{\mathit{\infty }}\mathbf{吨}}{\overline{\mathbf{C}}}=1$.