Abstract
The laminar flow of an incompressible newtonian fluid around a circular cylinder is well known and described in literature as Karman vortex street. For its extensive investigations in the past this flow is frequently used as a test case for numerical simulation (CFD). In spite of that, direct comparisons of the time dependent development of the velocity components between experiment and simulation still seem to be missing. Until now to our knowledge just comparisons for the mean values have been reported. In this work results for the time dependent flow obtained with Laser Doppler Velocimetry (LDV) and Particle Image Velocimetry (PIV) are reported and compared to results of a numerical simulation. The qualitative and quantitative correspondences and differences are presented and discussed.
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