水中で正弦的に振動する長方形断面柱の流体反力

概要

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The hydrodynamic forces generated by interaction between water and a rectangular cylinder have been investigated experimentally. Five rectangular cylinder models of 6,12,30,60 and 120 mm width, 60 mm height and 200 mm span were used. A period parameter ranged from 0.2 to 3.2 in the investigation. The test frequency was 2 Hz. The characteristics of the hydrodynamic force acting on a circular cylinder, square cylinder, diagonal square cylinder and elliptic cylinder reported previously by the present authors depended on the period parameter but not on the Reynolds number and the test frequency less than 6 Hz. The results are as follows : the hydrodynamic force coefficient, the wave form and the phase difference to the period parameter are shown : the effects of the cross sectional width/height ratio to the force coefficient and the phase difference are explained.
一般社団法人日本機械学会の論文
1998-07-25