环形圆柱体湍动尾流主导相干结构的重构
Time-resolved PIV measurements on five independent planes are phase averaged using Proper Orthogonal Decomposition (POD) of each set of PIV data obtained. Simultaneously acquired Laser Doppler Velocimetry (LDV) measurements at a fixed location provide the average oblique angle of the vortex shedding phenomenon.
实验装置
Two-dimensional PIV setup:
low speed water flow (U = 85 mm/s)
imposed velocity gradient
uniform cylinder model (D = 25.4 mm)
测量结果
Sample instantaneous velocity and vorticity field.
3D重构
the vorticity field is reconstructed in three-dimensions using a time-resolved phase averaging approach with POD and LDV phase reference signals.
加拿大滑铁卢大学C. Morton, S. Yarusevych友情提供
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