A survey is conducted to quantitatively visualise the wake flow behind a circular cylinder at Reynolds numbers of 180 to 2500. A time-resolved tomographic PIV method is used to measure the
sequence of three-dimensional vector fields evolving in time. The attention is focused upon the unsteady 3D wake organization with the interaction of primary rollers (Karman-Benard) and the secondary vortices resulting from 3D instability of the vortex wake. 体视层析粒子成像测速系统(Tomo-PIV) HighSpeedStar PIV相机 用于粒子成像测速(PIV)的荧光示踪粒子
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