Influence of freestream turbulence intensity on wakes of side- by-side cylinders in crossflow

Abstract eng:
Stereo particle image velocimetry is used to examine the influence of varying levels of freestream turbulence on the wakes of a pair of side-by-side cylinders crossflow. Four different inflow conditions are employed. Each inflow condition is applied to three different cylinder-to-cylinder spacing values. The mean velocity components and Reynolds stresses are heavily affected by the inflow condition as well as the center-to-center spacing. Low dimensional representations found using Proper Orthogonal Decomposition recover energy at rates that are also dependent on the level of incoming turbulence intensity.

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