High-speed Gradient Flow Field Image Hybrid PIV-PSV Processing Algorithm
In flow field measurements,there are often regions with large velocity variations.If the obtained measurement image shows high-speed blurring,using existing PIV/PSV algorithms alone may not accurately describe the velocity field.This paper proposes a combined PIV-PSV image pro-cessing algorithm that segments the high-speed gradient image into high-and low-speed sub-images and applies PIV and PSV algorithms separately to each sub-image.The resulting outcomes are sub-sequently integrated,leading to an improvement in accuracy by more than 2 times compared to using a single algorithm alone.This hybrid processing algorithm has potential for further improvement and scalability in handling three-dimensional velocity fields.
high-speed gradient flow field imagePIVPSValgorithm
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