流れのパッシブ制御による円柱の流体力の抑制(流体工学,流体機械)

概要

論文の詳細を見る
The Objective of the present study was to investigate the suppression of the fluid forces acting on a circular cylinder by passive control of the flow. The flow control was established by introducing a fine flat plate at the upstream of the circular cylinder. Measurements were carried out by varying the position and width of the flat plate. The time-averaged and fluctuating fluid forces, vortex shedding frequency and flow patterns were systematically examined. Furthermore, the controlled fluid forces and the behavior of the flow were discussed in detail. It was found that the maximum reduction of the time-averaged drag was 58%, and that of the fluctuating lift and drag was 61% and 46%, respectively, by using a 5 mm wide flat plate, which was considerably small compared to the circular cylinder diameter of 49 mm.
一般社団法人日本機械学会の論文
2002-10-25