Análise do Problema de Advecção e Difusão Bimodal Unidimensional
DOI:
https://doi.org/10.5540/tema.2020.021.02.287Keywords:
Difusão bimodal, Difusão anômala, Método de Diferenças Finitas, Equação diferencial de quarta ordem.Abstract
Este artigo apresenta a metodologia para a solução de um problema de advecção e difusão bimodal unidimensional utilizando o Método de Diferenças Finitas. Além do termo de transporte advectivo e da difusão primária (que corresponde ao fluxo de Fick), a equação da difusão bimodal inclui um termo relativo à um fluxo secundário que é modelado por um termo diferencial de quarta ordem. O problema foi analisado para diferentes condições iniciais e de contorno, sendo os resultados compatíveis com os apresentados em trabalhos anteriores da literatura.
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