Aeroelastic Computations in the Time Domain Using Unstructured Meshes
نویسنده
چکیده
A strategy for computing aeroelastic solutions is proposed. An implicit LU fac-torisation scheme for solving the time dependent Euler equations on unstructured triangular meshes is presented and coupled with a typical section aeroelastic wing model. EEciency is improved by coupling the LU factorisation scheme with a GM-RES algorithm. In this case the LU scheme plays the role of a preconditioner. The uid and structural models are simultaneously integrated in time in a fully coupled manner. The response of structural sections in diierent ow regimes is determined and utter boundaries are computed. In the transonic regime and beyond the region of linear stability, the section is found to exhibit limit cycle behaviour.
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