気流中の有限幅矩形シートに励起されるフラッタの数値計算:

シート側端まわりの流れがフラッタ特性に及ぼす影響

抄録

Flutter of thin elastic plates (sheets) in air flow is an important engineering problem. Thus, understanding of detailed flutter characteristics is crucial. In this study, fluid – structure interaction simulation using computational fluid dynamics (CFD) is performed to examine the flow field around a fluttering sheet. The Navier – Stokes and continuity equations are discretized by the finite volume method (FVM). In addition, the finite element method (FEM) is applied to structural analysis. It is found that flow separation around the side edge of a sheet affects flutter amplitude.