Abstract
The magnetic field can act as a suitable control parameter for heat transfer and fluid flow. It can also be used to maximize thermodynamic efficiency in a variety of fields. Nanofluids and porous media are common methods to increase heat transfer. In addition to improving heat transfer, porous media can increase pressure drop. This research is a computational simulation of the impacts of a magnetic field induced into a cylinder in a porous medium for a volume fraction of 0.2 water/Al2O3 nanofluid with a diameter of 10 μm inside the cylinder. For a wide variety of controlling parameters, simulations have been made. The fluid flow in the porous medium is explained using the Darcy-Brinkman-Forchheimer equation, and the nanofluid flow is represented utilizing a two-phase mixed approach as a two-phase flow. In addition, simulations were run in a slow flow state using the finite volume method. The mean Nusselt number and performance evaluation criteria (PEC) were studied for different Darcy and Hartmann numbers. The results show that the amount of heat transfer coefficient increases with increasing the number of Hartmann and Darcy. In addition, the composition of the nanofluid in the base fluid enhanced the PEC in all instances. Furthermore, the PEC has gained its highest value at the conditions relating to the permeable porous medium.
Highlights
The most important parameters discussed in heating systems and industrial centers are the increase of heat transfer and advanced and optimal cooling [1]
In recent years, according to laboratory studies on the effect of the magnetic field on the viscosity and specific heat capacity of biphasic fluids such as nanoparticles, the results show that the observed changes may be due to the presence of particles in the fluid or the change in fluid flow behavior applied in the presence of a magnetic field
The heat transfer performance of resuspended nanofluid under the electric field is significantly increased compared to the pure base fluid, which increases with the improvement of voltage, concentration, and direction change time
Summary
The most important parameters discussed in heating systems and industrial centers are the increase of heat transfer and advanced and optimal cooling [1]. Optimization of heat transfer systems to increase the heat flux in most thermal equipment is possible by increasing the surface and increasing the volume and size of the equipment [1]. The growth and development of industry and manufacturing activities have led researchers and manufacturers to take a fresh look at heat transfer and cooling fluid methods [5]. Nanofluids are a new kind of fluids derived from the distribution of nanosized particles in regular fluids. They have many possibilities for industrial uses.
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