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Libro de Resúmenes / Book of Abstracts (Español/English)

Libro de Resúmenes / Book of Abstracts (Español/English)

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Resumenes 129<br />

Aproximación y simulación <strong>de</strong> un mo<strong>de</strong>lo <strong>de</strong> dispersión <strong>de</strong><br />

contaminantes en superficies esféricas<br />

Carmen Alicia Ramírez Bernate 1 , Geraldo Lúcio Diniz 2<br />

1 Maestria en Biomatemáticas, Facultad <strong>de</strong> Ciencias Basicas, Universidad <strong>de</strong> Quindio<br />

Carrera 15 Calle 12 Norte A.A. 460 – Armenia, Quindio, Colombia.<br />

aliciarb@uniquindio.edu.co<br />

2 Mathematics Department, ICET, Fe<strong>de</strong>ral University at Mato Grosso<br />

Av. Fernando Correa, 78.060-900 – Cuiabá/MT, Brazil<br />

geraldo@cpd.ufmt.br<br />

En este trabajo, presentamos una aproximación y simulación <strong>de</strong>l<br />

proceso evolutivo <strong>de</strong> la dispersión <strong>de</strong> contaminantes en superficies<br />

esféricas. El código numérico para la simulación es hecho por el método <strong>de</strong><br />

elementos finitos (MEF). En el mo<strong>de</strong>lo, consi<strong>de</strong>ramos el proceso <strong>de</strong> la<br />

difusión, el fenómeno <strong>de</strong> transporte por el medio, el <strong>de</strong>caimiento en sentido<br />

global y un término <strong>de</strong> fuente. Para la clásica ecuación <strong>de</strong> difusión-reacción<br />

obtuvimos la formulación débil en el sentido <strong>de</strong> aplicar el método <strong>de</strong><br />

elementos finitos. Los autores creen que la importancia <strong>de</strong>l trabajo<br />

<strong>de</strong>sarrollado conduce a su uso potencial en procesos <strong>de</strong> medio ambiente<br />

para la <strong>de</strong>finición <strong>de</strong> estrategias evaluativas, preventivas y <strong>de</strong> limpieza.<br />

Palabras Claves: Aproximación Numérica, Simulación Computacional,<br />

Dispersión, Método <strong>de</strong> Elementos Finitos, Superficie Esférica.<br />

Approximation and simulation for a mo<strong>de</strong>l <strong>of</strong> pollutant<br />

dispersal in spherical surfaces<br />

In this paper, we present an approach and simulation <strong>of</strong> evolutionary<br />

process <strong>of</strong> pollutant dispersal on spherical surfaces. The numerical co<strong>de</strong> <strong>of</strong><br />

simulations is ma<strong>de</strong> by finite elements method (FEM). In the mo<strong>de</strong>l, we<br />

consi<strong>de</strong>r the diffusion process, the transport phenomena by the mean, the<br />

<strong>de</strong>cay in global sense and a source term. For the classical diffusion-reaction<br />

equation we obtained the weak formulation in the sense <strong>of</strong> applying the<br />

finite elements method.<br />

This mo<strong>de</strong>l is being studied by group <strong>of</strong> Phenomena Mo<strong>de</strong>lling <strong>of</strong><br />

Macroscopic Diffusion in the Master <strong>of</strong> Biomathematics program at the<br />

University <strong>of</strong> Quindio, Colombia. The authors believe that the relevance <strong>of</strong><br />

the <strong>de</strong>veloped work lies in its potential use in environmental assessment<br />

processes for the <strong>de</strong>finition <strong>of</strong> evaluative, preventive and clean-up<br />

strategies.<br />

Keywords⎯ Numerical Approximation, Computational Simulation,<br />

Dispersion, Finite Elements Method, Spherical Surface.

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