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고성호(Sung Ho Ko),곽영균(Young Kyun Kwack),한승렬(Seung Yeul Han),김연태(Yun Tae Kim) 한국유체기계학회 2009 유체기계 연구개발 발표회 논문집 Vol.2009 No.-
In the present study, a fully coupled FSI(Fluid-Structure Interaction) analysis has been made to predict the flutter of a three dimensional wing. The FSI computation was made by the information exchange between CFD solution and FEM solution at each time step. Converged CFD solutions were obtained and used as the initial flow fields of the FSI computation. An unstructured FEM mesh was constructed for FEM calculation. Results of the fully coupled FSI computation were compared with those of an unsteady CFD solution, which showed why the FSI computation was essential for flutter analysis.