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

作者：Ferragut L; Asensio M I^*; Cascon J M; Prieto D; Ramirez J

来源：Advances in Engineering Software, 2013, 65: 191-199.

DOI：10.1016/j.advengsoft.2013.06.010

• Air pollution modeling
• Splitting methods
• Adaptive Finite Element Method
• Parallel algorithm
• Parabolic convection-diffusion PDE
• PDE numerical methods

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.

• 出版日期2013-11