A pseudo-non-time-splitting method in air quality modeling
type: Item
instance of: scholarly article
title: A pseudo-non-time-splitting method in air quality modeling
zbMATH Open document ID: 0859.65133
author: Pu Sun
published in: Journal of Computational Physics
publication date: 1997-03-25T00:00:00Z
review text: This paper presents a pseudo-non-time-splitting (PN) method that combines the different processes in air quality modeling, such as advection, diffusion, and emission, with chemical reaction computations. The purpose is to reduce the errors generated by the time-splitting method by taking the advantage of the fact that the integration time steps in the chemical reaction computation are much smaller than those used in other processes. An example of a cosine hill rotation with chemical reactions is used to demonstrate this new method. The author shows that the PN method produces results with similar accuracy to those from the conventional time-splitting method but consumes about 20\% less execution CPU time.
reviewed by: Michael Sever
Mathematics Subject Classification ID: 65Z05
Mathematics Subject Classification ID: 92C45
Mathematics Subject Classification ID: 35K55
Mathematics Subject Classification ID: 92E20
Mathematics Subject Classification ID: 65M06
zbMATH DE Number: 938015
zbMATH Keywords: nonlinear parabolic system
zbMATH Keywords: finite difference methods
zbMATH Keywords: pseudo-non-time-splitting method
zbMATH Keywords: air quality modeling
zbMATH Keywords: advection
zbMATH Keywords: diffusion
zbMATH Keywords: emission
zbMATH Keywords: chemical reaction
MaRDI profile type: Publication
full work available at URL: jcph.1996.0165
OpenAlex ID: W2055213168
DOI: 10.1006/JCPH.1996.0165
description: scientific article; zbMATH DE number 938015