円柱の流体力制御とその効果の解明 : 小平板による制御

概要

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The objective of the present study was to investigate the suppression of the fluid forces acting on a circular cylinder by controlling the flow around it. The flow control was established by introducing a fine flat plate in the neighbourhood of the main cylinder. Measurements were carried out to change systematically the position of the flat plate, and then the steady and unsteady fluid forces were examined to estimate the magnitude of the reduction themselves and to identify the optimum position of the control flat plate in order to reduce the fluid forces. Furthermore, such matters as the mechanism of the flow control, the structure of the controlled wake and the behaviour of the controlled boundary layer and the separated shear layer were discussed. Then the availability of the present method to reduce the fluid forces and suppress the vortex shedding was synthetically evaluated.
社団法人日本機械学会の論文
1992-04-25