Title

Numerical Simulation of Rain Scavenging on Large Release of Water-Soluble Gases

Abstract

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.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Hydrogen Compounds; Rain; Simulation

Library of Congress Subject Headings

Air - Pollution
Diffusion
Environmental engineering
Fluorine compounds

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2003 American Society of Civil Engineers (ASCE), All rights reserved.


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