流れの中に置かれたせきの後流渦の能動制御に関する実験的および理論的研究

概要

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In this paper, active vortex control in flow across a barrage is investigated experimentally and theoretically. The special feature of the presented control method is that the vortex is controlled by the vibration of the control element, which is the front edge of the barrage and the generation point of the vortex. In the experimental study, the front edge of the barrage is acted upon by an excitor perpendicular to the flow direction. Firstly, the transfer function between the vibration of the control element and the pressure in the wake is determined. Then the feedback control is carried out with consideration of the phase shift obtained by the transfer function. In the theoretical study, the vortex filament method is used and the flow across a barrage is analyzed as a two-dimensional flow. The feedback control theory is used and the behaviour of the vortex is simulated. It is shown experimentally and theoretically that the vortex is suppressed by the vibration of the control element in the case of the specified phase shift.
一般社団法人日本機械学会の論文
1995-05-25