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Numerical simulation of human exposure to aerosols generated during compressed air spray-painting in cross-flow ventilated booths.
Flynn MR; Sills ED
J Fluids Eng 2001 Mar; 123(1):64-70
This paper examines the use of computational fluid dynamics as a tool for predicting human exposure to aerosols generated during compressed air spray painting in cross-flow ventilated booths. Wind tunnel experiments employing a mannequin and non-volatile oil provide data to evaluate the numerical predictions. Fidap (v8.01) is used to calculate the velocity field and particle trajectories, while in-house codes were developed to post-process the trajectory data into mass concentrations, size distributions, transfer efficiency, and over-spray generation rates. The predicted dimensionless breathing-zone concentration of 0.13+/-23 percent is in agreement with the measured value of 0.13+/-15 percent given the uncertainties involved in such comparisons. Computational fluid dynamics is a powerful tool capable of providing useful information to occupational hygiene engineers involved in controlling human exposures to toxic airborne contaminants.
Industrial hygiene; Occupational exposure; Spray painting; Fluid mechanics; Aerosols; Aerosol sampling; Ventilation; Mathematical models; Paint spraying; Author Keywords: Computational Fluid Dynamics; Spray Painting; Ventilation; Exposure Modeling
Issue of Publication
Research Tools and Approaches: Exposure Assessment Methods
Journal of Fluids Engineering
Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina
Page last reviewed: June 15, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division