PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING
PROCEEDINGS OF 17th NATIONAL SYMPOSIUM ON WIND ENGINEERING
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SPATIAL COHERENCE OF PRESSURES AROUND TWO DIMENSIONAL SECTIONS IN FLUCTUATING FLOW
Masaru MatsumotoHiromichi ShiratoTakashi HaramuraYusaku OdawaraYusuke Matsuura
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Pages 42

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Abstract

The aim of this study is to clarify the reason why the span-wise coherence of fluctuating pressures on two-dimensional bluff sections is larger than that of fluctuating wind velocities. The surface pressure and the velocity fluctuation around a 2-D model with rectangular section of B/D=5 (B: chord length, D: depth of the section) were measured in grid turbulence and in the artificially generated 3-D fluctuating flow. In conclusion, it is considered that vortex is formed around leading edge and the strong fluctuation of surface pressure by external pulsation is produced by the change of the size of the separation bubble.

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© 2002 Steering Committee of National Symposium on Wind Engineering
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