Experimental comparison of two laser-based velocimeters for flows with alluvial sand

Experimental comparison of two laser-based velocimeters for flows with alluvial sand  Nonintrusive measurements in a sediment-laden flow using two laser-based techniques, Discriminator Laser-Doppler Velocimetry (DLDV) and Particle Tracking Velocimetry (PTV), are compared. DLDV was previously developed at the Iowa Institute of Hydraulic Research, while PTV was specially configured for this application. Mean and fluctuating velocity components for both flow fractions were simultaneously measured in a laboratory-scale, submerged water jet loaded with alluvial sand. This information cannot be obtained using existing measurement techniques. The jet Reynolds number was 6120, and the sediment sieve diameter ranged from 0.5 to 0.6 mm. Small mass loadings of sand with inertial time constant τ p of 0.6 ms were examined. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Experimental comparison of two laser-based velocimeters for flows with alluvial sand

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Copyright © 1998 by Springer-Verlag Berlin Heidelberg
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
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