An efficient algorithm for solving a multi-layer convection-diffusion problem applied to air pollution problems

被引：9
|
作者：
Ferragut, L. [1 ,2 ]
Asensio, M. I. [1 ,2 ]
Cascon, J. M. [1 ,3 ]
Prieto, D. [2 ]
Ramirez, J. [4 ]
机构：
[1] Inst Univ Fis Fundamental & Matemat, Salamanca 37008, Spain
[2] Univ Salamanca, Dept Matemat Aplicada, E-37008 Salamanca, Spain
[3] Univ Salamanca, Dept Econ & Hist Econ, Salamanca 37007, Spain
[4] Tecnosylva Sl, Leon 24009, Spain
来源：
ADVANCES IN ENGINEERING SOFTWARE | 2013年 / 65卷
关键词：
Air pollution modeling; Splitting methods; Adaptive Finite Element Method; Parallel algorithm; Parabolic convection-diffusion PDE; PDE numerical methods; MODEL; SIMULATION;
D O I：
10.1016/j.advengsoft.2013.06.010
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
An urban scale Eulerian non-reactive multilayer air pollution model is proposed describing convection, turbulent diffusion and emission. A mass-consistent wind field model developed by authors is included in the air pollution model. An Adaptive Finite Element Method with characteristics in the horizontal directions and Finite Differences in the vertical direction using splitting techniques is proposed to numerically solve the corresponding PDE problem. A parallel version of the algorithm improves the precision of the solution keeping computation time below real time of simulation. A numerical example illustrates the whole problem. (C) 2013 Elsevier Ltd. All rights reserved.
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页码：191 / 199
页数：9
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