直列2本円柱の空力応答特性に関する実験的研究

Abstract

Wake Galloping is defined as cross flow oscillation of leeward cylinder in higher wind velocitydue to Karman vortex shedding when two cylinders are suitably arranged in series with approach-ing flow.In this study, in order to discuss the physical mechanism of Wake Galloping, some windtunnel experiments were carried out, like static and dynamic pressure measurements on the surfaceof leeward cylinder, flow visualization by smoke wire method. On the basis of these measure-ments, some characteristics concerning the relationship between the flow pattern around twocircular cylinders with the unsteady pressure are investigated.