Author(s): Michael Horst
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Keywords: No Keywords
Abstract: Particle Image Velocimetry (PIV) is a non-intrusive method used for ascertaining hydraulic information in a specific area of interest in either 2 or 3 dimensions. Using an illuminating light source, reflective particles, and a high speed camera, a time series of images in a specified area are captured and correlated thus producing a detailed representation of the flow field. Once the flow field is established, corresponding information such as velocity vectors, streamlines, and shear stresses, over a given duration can be calculated. This method of acquiring hydraulic information is proving vital for advancing the professions understanding of various hydraulic phenomenons, especially in and around hydraulic structures such as bridges, culverts, and guide-vanes used in stream restoration.
Year: 2009