DSpace DSpace UPC
 Català   Castellano   English  

E-prints UPC >
Altres >
Enviament des de DRAC >

Empreu aquest identificador per citar o enllaçar aquest ítem: http://hdl.handle.net/2117/16963

Arxiu Descripció MidaFormat
0861_001026_2012-06-21_P16.pdf9,46 MBAdobe PDFThumbnail
Veure/Obrir

Citació: Monforte, L.; Perez, A. A multi-mesh adaptive scheme for air quality modeling with the finite element method. A: European Congress on Computational Methods in Applied Sciences and Engineering. "Proceedings of 6th European Congress on Computational Methods in Applied Sciences and Engineering". 2012, p. 1-16.
Títol: A multi-mesh adaptive scheme for air quality modeling with the finite element method
Autor: Monforte, Lluis; Pérez Foguet, Agustí Veure Producció científica UPC
Data: 2012
Tipus de document: Conference report
Resum: A multi-mesh adaptive scheme for convection-diffusion-reaction problems is presented. The proposal is applied to air quality modeling, especifically to the simulation of a pollutant punctual emissions. The performance of the proposal is analyzed with different nonlinear reaction models, including the photochemical model CB05 implmented within the Comunity Multiscale Air Quality model, which involves sixty-two species and very different characteristic reaction times. The problem is solved with splitting of transport and reaction processes. This allows to discretize the species in distinct computational meshes, adapted to the distribution of the error indicator of each case. A common reference mesh is used for all species and during all problem evolution. A remeshing technique based on imposing the volume of new elements is used to define and update the computational meshes. An error indicator well suited for problems involving large variation of the unknowns is used. A single-mesh strategy, with remeshing adapted to the most demanding specie in each part of the domain, is used for comparison. The results of the examples presented show that the accuracy of single and multi-mesh strategies are similar. Instead, computational cost of multi-mesh is lower than single-mesh in most cases. Reduction increases with the number of species and the number of plumes. An example of a punctual emissor in a three-dimensional domain, with realistic values of CB05 components, is presented.
ISBN: 978-3-9502481-9-7
URI: http://hdl.handle.net/2117/16963
Versió de l'editor: http://cataleg.upc.edu/record=b1253621~S1*cat
Apareix a les col·leccions:Altres. Enviament des de DRAC
LaCàN - Laboratori de Càlcul Numèric. Ponències/Comunicacions de congressos
Departaments de Matemàtica Aplicada. Ponències/Comunicacions de congressos
Comparteix:


Stats Mostra les estadístiques d'aquest ítem

SFX Query

Aquest ítem (excepte textos i imatges no creats per l'autor) està subjecte a una llicència de Creative Commons Llicència Creative Commons
Creative Commons

 

Valid XHTML 1.0! Programari DSpace Copyright © 2002-2004 MIT and Hewlett-Packard Comentaris
Universitat Politècnica de Catalunya. Servei de Biblioteques, Publicacions i Arxius