Experimental studies on vibrations of a cricular cylinder in corss flow at supercritical reynolds numbers

摘要

Flow-induced vibrations were measured for a circular cylinder subjected to a water cross flow at supercritical Reynolds numbers for a wide range of reduced velcities Vr. Since the Strougal number at supercritical Reynolds numbers depends on the turbulent intensity TI of the incoming flow, the turbulent intensity was changed in order to investigate the effect of the Strouhal number on the lock-in regions by symmetrical and Karman vortex shedding. measured Strougal numbers ranged from 0.28(TI=13