後流振動子モデルを用いた相互作用現象の解析的評価 : 後流域との相互作用を考慮した三次元角柱の振動発生機構に関する基礎的研究(その2)

概要

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This paper presents numerical evaluation on interaction mechanism between three-dimensional square prism and wake. The purpose of this discussion is to propose numerical model for the simulation of vortex-induced oscillation or aerodynamic instability such as galloping. New parameter related to wake stagnation point in the averaged wake field obtained by PIV (Particle Image Velocimetry) measurement was introduced on the modification of the past wake-oscillator model. The result of numerical analysis by the proposed model showed that it was agreeable with the result of past wind tunnel experiment and it can be applicable to the condition of not only uniform flow but also turbulent flow.
社団法人日本建築学会の論文
2008-02-28