3次元流体解析による角柱に発生する種々の空力弾性挙動の再現と精度検討

概要

論文の詳細を見る
In order to investigate the aeroelastic instability of a rectangular cylinder in uniform flows, the three-dimensional flows around an oscillating cylinder with depth/breadth equal to 2.0 in heaving mode are computed by means of the direct finite difference method. It is confirmed that the computational results of oscillation behaviors as a function of the Scruton numbers or the initial state of the displacement are in good agreement with experimental ones even in nonlinear regions of the vortex-induced oscillations, the galloping and so on. Also the time variations of the response and the unsteady aerodynamic forces are investigated in order to understand the characteristics and the physical mechanism of various unstable oscillations.
社団法人日本建築学会の論文
1997-07-30