抄録
The results of the experiments of Tokumaru & Dimotakis (1991) have shown that the drag forces acting on a circular cylinder in rotary oscillation decrease up to 80% compared with stationary one. In the past, some researchers have tried computational studies for this phenomenon, but these predictions do not agree with each other. In the present study, three-dimensional turbulent simulations with the LES model were carried out on the Hitachi SR2201 in order to verify the drag reduction effect of the flow around a circular in rotary oscillation.
