2 December 1993 Experimental design considerations for pulsed holographic particle-tracking velocimetry
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Abstract
This study examines some of the advantages and disadvantages of using far-field holographic recording to study velocity fields. Several important experimental design features are discussed and resolution and inherent signal-to-noise ratio problems are presented. Seeding requirements for determining velocity scales down to the Kolmogorov range are presented based on a Poisson distribution of seed particles. The source density, a measure of the seeding density, is restricted to values much less than one to achieve adequate holographic imaging. The limitations of particle motion during exposure required for adequate imaging are also assessed. The seeding density is limited by the desired measurable velocity range, according to particle tracking requirements. Experimental measurements of a velocity and vorticity field are presented, and the effects of seed density, particle motion, and tracking sequence on the velocity range are included.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jon Mark Barker, Jon Mark Barker, James A. Liburdy, James A. Liburdy, "Experimental design considerations for pulsed holographic particle-tracking velocimetry", Proc. SPIE 2005, Optical Diagnostics in Fluid and Thermal Flow, (2 December 1993); doi: 10.1117/12.163719; https://doi.org/10.1117/12.163719
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