Browsing by Author "Chinyoka, T."

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    Computational dynamics of arterial blood flow in the presence of magnetic field and thermal radiation therapy
    (Hindawi Publishing Corporation, 2014-04-22) Chinyoka, T.; Makinde, O. D.
    We conduct a numerical study to determine the influence of magnetic field and thermal radiation on both velocity and temperature distributions in a single blood vessel. The model here assumes that blood is a Newtonian incompressible conducting fluid with radially varying viscosity due to hematocrit variation. The transient equations of momentum and energy transport governing the flow in an axisymmetric configuration are solved numerically using a semi-implicit finite difference method. Results are presented graphically and discussed both qualitatively and quantitatively from the physiological point of view. The results of this work may enhance current understanding of the factors that determine the effects of hyperthermia treatment on tumor tissues.
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    Thermal decomposition analysis in a sphere of combustible materials
    (Sage, 2017) Lebelo, Ramoshweu Solomon; Makinde, Oluwole Daniel; Chinyoka, T.
    In this article, we look at spontaneous combustion due to exothermic chemical reaction taking place within a stockpile of combustible material. The model includes mass and energy balance equations in a spherical domain. The complicated chemical reaction is simplified by considering a one-dimensional process. The differential equations governing the problem are solved using semi-implicit finite difference method. The effects of kinetic parameters embedded within the system are analyzed and the results are expressed graphically and discussed accordingly.