Abstract
The effect of low-frequency oscillation on a separated shear layer has experimentally been investigated. We find that the intense low-frequency oscillation of the separated shear layer may change the regular vortex shedding from the separated shear layer to an intermittent vortex shedding. An effort has been made to explain the mechanism of this intermittent vortex shedding. A nondimensional parameter has also been proposed to determine the possible existence of the intermittent vortex shedding in a separated shear layer.
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