3次元角柱まわりの流れの可視化

Abstract

It has been suggested that studies on flows around an obstacle involve important problemsfrom a fluid dynamics and engineering viewpoint. Most of them have dealt with 2-dimen-sional flows, but little with 3-dimensional flows. A flow visualization around 3-dimensionalsquare prisms was conducted in a wind tunnel in order to clarify problems on the separatedflows and the vortex formations around prisms. As a result, it was found that both aspectratios of prisms and Reynolds numders of flows changed the shapes of vortices in the wake.