Browsing by Author "Okedoye, Akindele M."

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    Analyzing the Impact of Heat and Mass Transfer on Unsteady MHD Flow with Thermal Radiation and Binary Chemical Reaction
    (European Journal of Theoretical and Applied Science, 2024) Okedoye, Akindele M.; Ometan, Sunday O.; Alabi, Mathew O.
    In this paper, we investigate the combined effects of heat and mass transfer on unsteady oscillatory magnetohydrodynamic (MHD) flow with thermal radiation and binary chemical reaction. The governing equations of the flow field, energy equation, and species concentration equation are derived under the assumptions of incompressible flow, uniform magnetic field, and small amplitude oscillations. The influence of thermal radiation and chemical reaction is incorporated through appropriate boundary conditions. Mathematical formulations are presented for the coupled system of equations, and numerical simulations are conducted to analyze the heat and mass transfer characteristics of the flow. Sensitivity analysis of the governing parameters were conducted and presented through graphs and discussed. The results provide insights into the complex interplay between fluid dynamics, thermal radiation, and chemical reaction in MHD systems and their implications for engineering applications.
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    Dissipative Non-Slip MHD Nanofluid Flow with Variable Viscousity and Thermal Conductivity in the Presence of Arrhenius Chemical Reaction
    (European Journal of Theoretical and Applied Science, 2024) Ogboru, Kelvin O.; Lawal, Muhammad M.; Okedoye, Akindele M.
    This research investigates the intricate dynamics of dissipative nonslip magnetohydrodynamic (MHD) nanofluid flow, characterized by variable viscosity and thermal conductivity, under the influence of an Arrhenius chemical reaction. The inclusion of the Arrhenius chemical reaction adds complexity through heat generation or absorption, impacting temperature and concentration gradients. The study is motivated by the extensive applications of nanofluids in engineering and industrial processes, where precise control of heat and mass transfer is critical. We develop a comprehensive mathematical model that incorporates the variable properties of the nanofluid, the effects of the Lorentz force due to the applied magnetic field, and the temperature-dependent reaction rates dictated by the Arrhenius equation. The formulated governing equations were non-dimensionalised to identify the flow governing parameters. Finite Element Method (FEM), grid generation, solution algorithms, and post-processing to analyse velocity, temperature, and concentration distributions were used to obtain the numerical methods to solve fluid flow problems based on the Navier-Stokes equations, involving concepts of discretization. pdsolve subpackage in Maple 2023 was used to numerically solve PDEs with specific initial and boundary conditions, incorporating the plot and display commands for graphical analysis, and the results are presented and discussed. The findings reveal that the interplay between parameters like Hartmann number, Darcy parameter, and heat generation or absorption profoundly influences flow behaviour and thermal characteristics. The reactivity parameter is crucial, dictating the rate of chemical reactions and affecting system dynamics. This research enhances understanding of the interdependencies among fluid properties, chemical reactions, and external parameters in nanofluid flows.
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    Mathematical analysis of affinity hemodialysis on T-Cell depletion
    (Elsevier, 2020) Okedoye, Akindele M.; Salawu, Sulyman O.; Oke, S.I.; Oladejo, N.K.
    Investigation into the mathematical analysis of affinity hemodialysis on T-cell depletion is considered to give more significant understanding on the infection dynamics of HIV. Our model revealed the possibility of more than two infected equilibriums with the incorporation of recovery through the affinity hemodialysis. The conditions for stable infected equilibrium to prevent full-blown of AIDS are obtained and stated as hypothesis. This work has, therefore, open the way for partnerships among modelers and clinicians to strengthening the insight into the nature and process of viral multiphasic decay noticed in some treated patients. The initial growth of virus, infected cells and glycoprotein as well as possibility of total viral clearance are examined in the study
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    Thermodynamic Second Law Analysis of Hydromagnetic Gravity-Driven Two-step Exothermic Chemical Reactive Flow with Heat Absorption Along a Channel
    (Iranian Journal of Energy and Environment, 2018) Okedoye, Akindele M.; Salawu, S. O.
    This study examines the second law of thermodynamic gravity-driven viscous combustible fluid flow of twostep exothermic chemical reaction with heat absorption and convective cooling under bimolecular kinetic. The flow is acted upon by periodic changes in the axial pressure gradient and time along the axis of the channel with the existence of magnetic field. The heat convection at the channel surfaces with the environment are the same and satisfies Newtons law of cooling. The dimensionless main equations of the flow are solved using a convergent and stable semi-implicit finite difference method. The effect of some fluid parameters associated with the problem on momentum and temperature are obtained. The expression for irreversibility ratio, volumetric entropy generation and Bejan number along with the graphically results are presented and quantitatively discussed.