Nonlinear Airfoil Limit Cycle Analysis Using Continuation Method and Filtered Impulse Function

What is it about?

We develop an adaptive step size control algorithm incorporated in the continuation method and combine it with the filtered impulse function method based on the aero-structural solver. It has some distinct advantages compared to the classical method with a fixed step size. For example, the computation time for the aeroelastic analysis of a NACA0012 airfoil with control surface free-play using this approach can be reduced by more than 65% while maintaining the same good accuracy.

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