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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References
Huang H.T., Fiedler H.E. and Wang J.J.[1]: 1992, Limitation and improvement of PIV, part I: limitation of conventional technique due to deformations of particle image pattern, submitted to Exp. Fluids.
Huang H.T., Fiedler H.E. and Wang J.J.[2]: 1992, Limitation and improvement of PIV, part II: particle image distortion, a novel technique, submitted to Exp. Fluids.
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© 1993 Springer Science+Business Media Dordrecht
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Huang, H.T., Fiedler, H.E. (1993). Deformed Particle Image Pattern Matching in Particle Image Velocimetry. In: Nieuwstadt, F.T.M. (eds) Advances in Turbulence IV. Fluid Mechanics and its Applications, vol 18. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1689-3_30
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DOI: https://doi.org/10.1007/978-94-011-1689-3_30
Publisher Name: Springer, Dordrecht
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