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TECHNICAL PAPERS

A Phase-Averaged Analysis of Droplet Dispersion in the Wake of a Square Cylinder in a Uniform Stream

[+] Author and Article Information
S. Fohanno

Laboratoire de Thermomécanique-UTAP (E.A. 2061), Faculté des Sciences Université de Reims Champagne-Ardenne, B.P. 1039, 51100 Reims, France

R. J. Martinuzzi

Department of Mechanical and Materials Engineering, Faculty of Engineering, The University of Western Ontario, London, Ontario, Canada, N6A 5B9

J. Fluids Eng 126(1), 110-119 (Feb 19, 2004) (10 pages) doi:10.1115/1.1637637 History: Received January 17, 2003; Revised September 16, 2003; Online February 19, 2004
Copyright © 2004 by ASME
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References

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Figures

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Schematic of the experimental geometry and nomenclature
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Droplet number density distribution upstream of the cylinder
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Centerline (y/D=0) streamwise velocity (U/U) and streamwise (URMS/U) and cross-stream (VRMS/U) velocity fluctuations downstream of the obstacle. Comparison between present study and results of Lyn et al. 1
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Approaching flow conditions at x/D=−1
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Particle number mean diameter (d10) as a function of the streamwise location (x/D) at several vertical locations (y/D)
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Non-dimensional particle concentration (C/C) as a function of the streamwise location (x/D4) and particle size classes for three vertical locations. (a) y/D=0 (b) y/D=0.5 (c) y/D=1
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Time-averaged non-dimensional flow conditions at x/D=+1
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Time-averaged non-dimensional transverse velocity conditions at x/D=2
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Time-averaged non-dimensional flow conditions at x/D=+3
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Time-averaged non-dimensional flow conditions at x/D=+6
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Phase-averaged non-dimensional vertical velocity (top) and droplet number density distribution (bottom) at the centerline (y/D=0) for three streamwise locations. (a) x/D=2 (b) x/D=3 (c) x/D=6
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Time-averaged droplet concentration distributions in the close near-wake at x/D=1
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Corrected and normalized phase-averaged droplet number density distribution at the centerline (y/D=0) and for x/D=2
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Phase-averaged non-dimensional vertical velocity (top) and droplet number density distribution (bottom) half a diameter above the centerline (y/D=0.5) for three streamwise locations. (a) x/D=2 (b) x/D=3 (c) x/D=6
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Phase-averaged non-dimensional vertical velocity (top) and droplet number density distribution (bottom) for three locations close to the shear layer region. (a) x/D=1,y/D=1 (b) x/D=3,y/D=1 (c) x/D=3,y/D=1.25

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