Deformed particle image pattern matching in Particle Image Velocimetry |
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Authors: | H T Huang and H E Fiedler |
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Institution: | (1) Hermann-Föttinger-Institut, TU-Berlin, Germany |
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Abstract: | The deformation of particle image patterns due to velocity gradients causes errors of velocity measurements and false velocity detections in PIV (Particle Image Velocimetry). A novel technique to overcome those limitations inherent in the conventional PIV by correcting the particle image pattern according to the local velocity gradients in two dimensional flows, i.e. u/ x, u/ y, v/ x and v/ y, is proposed and successfully applied to a water flow downstream of a backward facing step. |
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Keywords: | PIV deformation step flow |
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