Experimental Studies on Shedding Vortex Frequency of a Circular Cylinder in a Pulsating Flow

Abstract

Vortex shedding frequency was measured in the downstream of a circular cylinder in a pulsating flow. A hot-wire anemometer was used for the velocity measurement. The Strouhal number was calculated based on the measured shedding frequency. The constancy of the Strouhal number was also retained in the pulsating flow, though the Strouhal number itself was substantially higher than that in the steady flow.