Abstract
It is a practical application to use porous zones for cooling systems of magnetic sensors. The importance of MHD (Magnetohydrodynamic) on the irreversibility of liquid within a chamber consisting of porous zone has been incorporated in current article. CVFEM (Control Volume based Finite Element Method) has been employed to model the simplified model obtained after employing the vorticity formula. Outputs indicated that the intensity of nanomaterial circulation increases as Ra increases, while it decreases with the inclusion of a magnetic field, which converts the heat transmission mode to conduction, and due to the appearance of a stretching eddy, the heat plume is removed. A reduction in permeability reflects an increase in the exergy drop, which means greater thermal irreversibility. A nonessential impact on the Bejan number (Be) distribution was reported with altering Darcy number (Da) if the buoyancy force was negligible. Regardless of the changing maximum magnitude of Be, augmenting Da results in lower Be. Due to the dependence of Nusselt number (Nu) on the inner surface temperature, Hartmann number (Ha) has a reverse relation with Nu, which means a lower cooling rate with the inclusion of Ha.
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•Impact of magnetic force on ferrofluid flow in a porous zone was scrutinized.•CVFEM has been utilized for modeling of this article.•Augmenting Da results in lower Be in presence of non-Darcy model.•Lower cooling rate with the inclusion of Ha.