Abstract:This paper presents a computational fluid dynamics (CFD) study of 2-D flow over a cylinder at a Mach number of 0.3 and diameter based Reynolds numbers ranging between 50 and 1000. The flow simulation was marched in time from an impulsive start and reveals the evolution of vortex instability. After the cylinder has traveled between 100 and 1000 diameters, alternate vortex shedding begins, and a von Karman vortex street develops in the wake. Throughout the initial transient of the flow, the lift coefficient show… Show more
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