Numerical simulation of a thermodynamically consistent four-species tumor growth model

A. Hawkins-Daarud, K.G. Zee, van der, J.T. Oden

    Research output: Contribution to journalArticleAcademicpeer-review

    92 Citations (Scopus)

    Abstract

    In this paper, we develop a thermodynamically consistent four-species model of tumor growth on the basis of the continuum theory of mixtures. Unique to this model is the incorporation of nutrient within the mixture as opposed to being modeled with an auxiliary reaction-diffusion equation. The formulation involves systems of highly nonlinear partial differential equations of surface effects through diffuse-interface models. A mixed finite element spatial discretization is developed and implemented to provide numerical results demonstrating the range of solutions this model can produce. A time-stepping algorithm is then presented for this system, which is shown to be first order accurate and energy gradient stable. The results of an array of numerical experiments are presented, which demonstrate a wide range of solutions produced by various choices of model parameters.
    Original languageEnglish
    Pages (from-to)3-24
    Number of pages22
    JournalInternational Journal for Numerical Methods in Biomedical Engineering
    Volume28
    DOIs
    Publication statusPublished - 2011

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