弾性支持された円柱群まわりの流れに及ぼす円柱間隔比の影響 : 第1報, 並列1列配置

概要

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This paper describes the effect of the spacing between two adjoining circular cylinders on the flow around two-dimensional circular cylinders supported by wires. The experiment was carried out in an N.P.L. blow-down unit wind tunnel with a working section of 500×500×2000mm, at the Reynolds number 9.4×10^3. The frequency of vortex shedding from the circular cylinder, displacement of the vibrating circular cylinder, and the time-mean and fluctuating surface pressure distributions on the circular cylinder were measured. The present results were compared with those for the case of fixed support Vortex shedding from circular cylinders occurs in the range of spacing ratio S/D≧2.3. The variations of Strouhal number, displacement, surface pressure distributions, drag coefficient, lift coefficient, fluctuating drag coefficient and fluctuating lift coefficient with the spacing ratio were obtained.
社団法人日本機械学会の論文
1996-06-25