乱流中の角柱表面の非定常圧力特性に関する実験的研究

奥村 学; 松谷 裕治; 松田 祥伍; 小林 紘士

doi:10.14887/kazekosymp.Symp17.0.43.0

PROCEEDINGS OF 17th NATIONAL SYMPOSIUM ON WIND ENGINEERING

DOI https://doi.org/10.14887/kazekosymp.Symp17.0.43.0

Conference information

Host: Science Council of Japan

Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japan Society of Steel Construction, Japan Society of Civil Engineering, Meteorological Society of Japan

EXPERIMENTAL STUDY ON THE CHARACTERISTIC OF THE PRESSURE FLUCTUATION OF RECTANGULAR CYLINDERS

Manabu Okumura, Yuji Matsutani, Shogo Matsuda, Hiroshi Kobayashi

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Keywords: Pressure Fluctuation, Rectangular Cylinder, Simultaneous Pressure Measurement

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 43

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Abstract

Gust force by across wind fluctuation, which is affected by separated flow from leading edge, cannot be theoretically derived. Therefore, gust force on bridge deck is estimated by experimental aeroelastic response function. However, the formation mechanism of gust force is not known precisely. In this study, to investigate pressure fluctuation of rectangular cylinders, simultaneous surface pressure measurements were carried out in two-dimensional and grid turbulent flows. The results showed that the separated flow from the leading edge of a rectangular cylinder dominantly forms the gust force.

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