Publication de 12 numéros par an
ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508
Indexed in
EFFECT OF THERMAL RADIATION ON MIXED CONVECTION FLOW OF A NANOFLUID ABOUT A SOLID SPHERE IN A SATURATED POROUS MEDIUM UNDER CONVECTIVE BOUNDARY CONDITION
RÉSUMÉ
This work focuses on the numerical modeling of a steady mixed convection boundary layer flow of a nanofluid about a solid sphere embedded in a porous medium with convective surface in the presence of the thermal radiation effect using the Brinkman-extended Darcy model. A model is developed to analyze the behavior of nanofluids, taking into account the nanoparticle volume fraction parameter, and the Rosseland approximation is used to describe the radiative heat flux in the energy equation. An appropriate transformation is employed, and the transformed equations are solved numerically using an efficient implicit iterative tri-diagonal finite difference method. Comparisons to previously published works are performed, and the results are found to be in excellent agreement. A parametric study of the physical parameters is conducted, and a representative set of numerical results for the velocity and temperature profiles as well as the local skin-friction coefficient and local Nusselt number are illustrated graphically to show interesting features of the solutions. It is concluded that both the local skin-friction coefficient and local Nusselt number decreased due to increases in Darcy number, while they are increased as in either the mixed convection parameter, Biot number, or thermal radiation parameter increase. In addition, an increase in the values of the nanoparticle volume fraction produced enhances in the local skin friction and reductions in the local Nusselt number.
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Chamkha A. J., Rashad A. M., EL-Zahar E. R., EL-Mky Hamed A., Analytical and Numerical Investigation of Fe3O4–Water Nanofluid Flow over a Moveable Plane in a Parallel Stream with High Suction, Energies, 12, 1, 2019. Crossref
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Shaw Sachin, Dogonchi A. S., Nayak M. K., Makinde O. D., Impact of Entropy Generation and Nonlinear Thermal Radiation on Darcy–Forchheimer Flow of MnFe2O4-Casson/Water Nanofluid due to a Rotating Disk: Application to Brain Dynamics, Arabian Journal for Science and Engineering, 45, 7, 2020. Crossref
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Nisar Kottakkaran Sooppy, Khan Umair, Zaib A., Khan Ilyas, Baleanu Dumitru, Numerical Simulation of Mixed Convection Squeezing Flow of a Hybrid Nanofluid Containing Magnetized Ferroparticles in 50%:50% of Ethylene Glycol–Water Mixture Base Fluids Between Two Disks With the Presence of a Non-linear Thermal Radiation Heat Flux, Frontiers in Chemistry, 8, 2020. Crossref