Computational Study of Flapping Wing Response to Vertical Gusts at Low Reynolds Numbers

Learning-based Adaptive Gust Mitigation with Oscillating Wings

“…A high-order accurate computational fluid dynamics (CFD) solver based on unstructured moving/deformable grids [14][15][16][17] is used to simulate unsteady flows over a pitching airfoil. This numerical framework has been extensively validated with experiments [8][9][10], and has been used to investigate unsteady flapping wing aerodynamics over a broad range of flow conditions [18][19][20][21][22]. Readers are referred to [15,17] for more technical details about the numerical framework.…”

“…𝑉/𝑈 ∞ ). The details of the numerical modeling and gust-airfoil interaction flow physics can be found in [8][9][10]. Figure 1 shows a nominal instantaneous vorticity field in a gust-wing interaction at Reynolds number 1,000.…”

“…Various studies have demonstrated the potential of oscillating wing motion for mitigation of the gust-induced negative effects [1][2][3][4][5][6][7][8][9][10]. These early results indicate that oscillating wing motions generate flow structures that inhibit the random flow separation inherent in typically stalled wings.…”