Computation of Particle and Scalar Transport for Complex Geometry Turbulent Flows

[+] Author and Article Information
P. G. Tucker

Fluid Mechanics Research Centre, The University of Warwick, Coventry, CV4 7AL, United Kingdom

J. Fluids Eng 123(2), 372-381 (Feb 06, 2001) (10 pages) doi:10.1115/1.1365959 History: Received November 20, 2000; Revised February 06, 2001
Copyright © 2001 by ASME
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Schematic of complex system
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Schematic showing particle location relative to a right hand wall control volume center
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Comparison of predictions with LDA measurements: (a) velocity comparison and (b) turbulence intensity comparison (– line of exact agreement, + k−ε, x k−l, • linear zonal)
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Particle dispersion for the complex system: (a) “laminar” flow; (b) isotropic turbulence; and (c) anisotropic turbulence
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Comparison of smoke flow visualization evidence with linear zonal predictions at the following dimensionless times: (a) t*=1.2; (b) t*=2.4; (c) t*=3.6; (d) t*=4.8 and (e) t*=6.0. Columns: (I) experimental flow visualization; (II) predictions with no fan swirl and (III) predictions with fan swirl.
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Measured particle concentration contours for faces A-F
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Predicted particle concentration contours for faces A-F
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Particle concentrations and computed flow field: (a) face—G measurements; (b) x-z plane streamlines; (c) face—F measurements and (d) face—G predictions.
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Measured particle concentrations and predicted flow paths: (a) face—C measurements and (b) x-y plane predictions
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Comparison of predictions with analytical solution of Hinze
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Comparison with measurements for dispersion in grid generated turbulence
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Predicted velocity vectors, weightless particle paths, and the distribution of a passive scalar




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