Structure of a Turbulent Boundary Layer Using a Stereoscopic, Large Format Video-PIV
Development of a stereoscopic particle image velocimeter for the measurement of three-dimensional vectors on a planar domain is described. The camera is based on two large format (2k × 2k) video cameras. Experiments in a turbulent boundary layer at Re θ = 2525 demonstrate its ability to measure three-dimensional turbulent flow. In addition to the quantitative value of the out-of-plane component, it is found that having the complete three-dimensional vector also significantly improves the qualitative visualization of the flow.
KeywordsParticle image velocimetry Boundary layer Three-dimensional Stereoscopic Videographic Turbulence
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