弾性変形を伴う物体周りの二次元非定常流れの数値計算(流体工学,流体機械)

概要

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The purpose of this study is to propose a numerical simulation method for predicting unsteady deformation of structures in response to unsteady changes of fluid dynamic force acted on them. The numerical simulation is carried for elastic structures with weakly coupling a finite difference fluid solver and a finite element structure solver. An overset grid technique and a space-time finite volume technique are used in the fluid solver. In the finite element structure solver, kinetic nonlinear effects of the structures from large displacement, large rotations, and large strains are considered. A typical numerical simulations is carried out for vortex induced vibrations of an elastic elliptic cylinder. The proposed method could be useful for the prediction of the periodic deformation of the structure under the vortex induced vibrations.
一般社団法人日本機械学会の論文
2006-06-25