Estudo do Coeficiente de Difusão Secundária em Problema de Difusão com Fluxo Bimodal
DOI:
https://doi.org/10.5540/tema.2020.021.02.229Keywords:
Difusão bimodal, Difusão anômala, Método de Diferenças Finitas, Equação diferencial de quarta ordem.Abstract
Uma formulação recentemente desenvolvida para o problema de difusão anômala com termo de quarta ordem apresentou em determinadas situações particulares valores negativos na solução. Neste trabalho é realizado um estudo do efeito coeficiente de difusão secundária visando contribuir para o entendimento do comportamento das soluções nestas situações. Foi implementada uma função para representar a variação na parcela sujeita a difusão primária e secundária, de acordo com a quantidade da propriedade em difusão. Os resultados obtidos são compatíveis com aqueles apresentados em trabalhos anteriores na literatura.
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