Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/116806
Título: 3-D adaptive wind field simulation including effects of chimney emissions
Autores/as: Montenegro Armas, Rafael 
Montero García, Gustavo 
Escobar Sánchez, José M 
Rodríguez Barrera, Eduardo Miguel 
González Yuste, J. M
Clasificación UNESCO: 1203 Ciencia de los ordenadores
120326 Simulación
332205 Fuentes no convencionales de energía
Palabras clave: 3-D wind modelling and simulation
Mass consistent models
Gaussian pollutant plumes
Finite element method
Mesh refinement
Fecha de publicación: 2004
Editor/a: Tsinghua University Press & Springer-Verlag
Conferencia: VI World Congress on Computational Mechanics,(Pekin) WCCM
Resumen: Air pollution models usually start from the computation of the velocity field of the fluid. In this paper, we present a model for computing such a field based on the contribution of the observed wind flow and the vertical buoyancy or momentum plume rise defined by a Gaussian plume model. This initial velocity field is adjusted to verify incompressibility and impermeability conditions by using a mass consistent model. In this environmental modelling that occur in a three-dimensional domain defined over complex terrain, a mesh generator capable of adapting itself to the topographical data and to the numerical solution is essential. Here, the unstructured tetrahedral meshes are generated by combining the use of a refinement/derefinement algorithm for two-dimensional domains and a tetrahedral mesh generator based on Delaunay triangulation. Occasionally in this process, low quality or even inverted elements may appear. For this reason, we have developed a simultaneous untangling and smoothing procedure to optimise the resulting meshes. Once we have constructed the adapted mesh in accordance with the geometrical characteristics of our domain, we use an adaptive local refinement in the plume trajectory and also for improving the numerical solution. Finally, this model is applied in a test problem.
URI: http://hdl.handle.net/10553/116806
URL: https://www.researchgate.net/publication/228851558_3-D_Adaptive_Wind_Field_Simulation_Including_Effects_of_Chimney_Emissions
Colección:Actas de congresos
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