Numerical Simulation of Human Exposure to Aerosols Generated During Compressed Air Spray-Painting in Cross-Flow Ventilated Booths

[+] Author and Article Information
Michael R. Flynn

Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599-7400

Eric D. Sills

North Carolina Supercomputing Center, PO Box 12889, RTP, NC 27709-2889

J. Fluids Eng 123(1), 64-70 (Oct 13, 2000) (7 pages) doi:10.1115/1.1340636 History: Received March 22, 2000; Revised October 13, 2000
Copyright © 2001 by ASME
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The reality being simulated: compressed air spray painting of a flat plate in a cross-flow ventilated booth, Θ=90 and 180 deg
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Photo of the experimental setup: mannequin in wind tunnel with 37-mm open-face cassette located in mouth
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Particle trajectories for the 90 deg orientation, in each case the small sphere depicts the breathing zone volume. Side views (a) 27.5 μm diameter particles, and (b) 52.5 μm diameter particles. Top-down views (c) 27.5 μm diameter particles, and (d) 52.5 μm diameter particles, booth airflow is from left to right.
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Three views of computational grid m3: (a) top view, (b) 3D view, (c) details of the jet region.
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Convergence of the dimensionless breathing-zone concentration as a function of the number of particle trajectories per size interval for the three finest meshes




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