Browsing by Author "Mannan, Abdul"

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    A mathematical model on EMHD peristaltic flow of UO2 nanofluid with microbes through a porous conduit: Application to flows in esophagus
    (Department of Mathematics, NITS, 2025) Mannan, Abdul
    An analytical study is presented on the bioconvective peristaltic flow of a Newtonian nanofluid within a porous, symmetric channel featuring flexible walls. The nanofluid behavior is examined under the influence of externally applied electric and magnetic fields. The model incorporates effects from motile microorganisms. The electroosmotic flow is described using the Nernst–Planck and Poisson equations. To simplify the mathematical formulation, assumptions of long wavelength and low Reynolds number are employed. The Homotopy Perturbation Method (HPM), along with the lubrication approximation, is utilized to derive analytical solutions for the reduced, non-dimensional governing equations. Graphical analysis is used to explore the impacts of various physical parameters on axial velocity, temperature, nanoparticle concentration, and microorganism density. It is observed that increasing buoyancy forces promote increased axial velocity. The Hartmann number and Joule heating parameter contribute to temperature elevation by inhibiting convective heat loss and producing internal heat. Furthermore, higher thermophoresis effects lead to greater nanoparticle accumulation, an effect magnified by Brownian motion. Increased Peclet numbers and bioconvection parameters are found to diminish microorganism density due to restricted diffusion and intensified convective disturbances. we believe that the outcomes of this study have potential applications in several areas, including bioengineering, bioreactors, enzyme processing, solar thermal systems, and energy storage technologies.