Researchers were attempting to solve the problem of small-scale drones flying in low-Reynolds number regions. Smaller drones face high sensitivity to atmospheric turbulence which affects vehicle stability and control of aerodynamic efficiency, an important parameter for efficient flight parameters. These researchers drew inspiration from biology’s small flyers to design a wing with “lift generation robust to gusts and freestream turbulence without sacrificing aerodynamic efficiency.”The achieved these results by, “forcing flow separation at the airfoil leading edge.”The advantages to the Separated Flow airfoil design were that it greatly improved the wing’s resilience to turbulence levels and changes in Reynolds numbers.
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