Abstract
A method to solve aeroelasticity of geometrically nonlinear structures in the time domain is presented. Large structural deformations are taken into account using the nonlinear corotational theory. Stable and accurate nonlinear solutions are obtained using the corotational theory in combination with an implicit energy-conserving algorithm. The fluid flow is modeled using Euler equations solved using a modified multiple moving-frames method. The application of the proposed methodology is illustrated on a study of nonlinear aeroelastic response of a NACA0012 airfoil in transonic flow. The proposed method is stable and results in accurate nonlinear solutions without the need to deform or regenerate the fluid grid.
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