PIV測定結果に基づく相互作用現象の実験的評価 : 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1)

概要

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This paper discusses interaction mechanism between vibrating three-dimensional square prism and fluctuating wind velocity field. Wind velocities in the wake region were measured by PIV (Particle Image Velocimetry) system and the dominant structure in the mechanism of vortex-induced oscillation was evaluated by applying POD (Proper Orthogonal Decomposition) analysis to the measured data. Based on the result of POD analysis, qualitative generation mechanism of lift force was presented. The main purpose of this study is that the dominant structure of the interaction mechanism between three-dimensional square prism and its wake is identified to evaluate the mechanism of across-wind response on the experimental basis.
社団法人日本建築学会の論文
2007-02-28