Numerical Simulation of Rain Scavenging on Large Release of Water-Soluble Gases
A depth-integrated numerical model GP_Rain was developed to calculate the behavior of neutrally buoyant, highly soluble gases subjected to scavenging by rain. A neutrally buoyant release of hydrogen fluoride is used to illustrate the use of the model. The GP_Rain model was developed in two steps. The part without rain scavenging is based on AFTOX, a Gaussian puff/plume model. Then a first-order decay term for rain scavenging, which was developed by assuming a homogeneous rain field, was added to the concentration calculation for the puff. The model can predict the maximum release distance for a certain concentration limitation and a two-dimensional plume with or without rain.
W. Zheng et al., "Numerical Simulation of Rain Scavenging on Large Release of Water-Soluble Gases," Journal of Environmental Engineering, American Society of Civil Engineers (ASCE), Jan 2003.
The definitive version is available at https://doi.org/10.1061/(ASCE)0733-9372(2003)129:1(59)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Hydrogen Compounds; Rain; Simulation; Air - Pollution; Diffusion; Environmental engineering; Fluorine compounds
Article - Journal
© 2003 American Society of Civil Engineers (ASCE), All rights reserved.