Numerical Study of Lorentz Force Interaction with Micro Structure in Channel Flow

Abstract

The heat transfer Magnetohydrodynamics flows have been potentially used to enhance the thermal characteristics of several systems such as heat exchangers, electromagnetic casting, adjusting blood flow, X-rays, magnetic drug treatment, cooling of nuclear reactors, and magnetic devices for cell separation. Our concern in this article is to numerically investigate the flow of an incompressible Magnetohydrodynamics micropolar fluid with heat transportation through a channel having porous walls. By employing the suitable dimensionless coordinates, the flow model equations are converted into a nonlinear system of dimensionless ordinary differential equations, which are then numerically treated for different preeminent parameters with the help of quasi-linearization. The system of complex nonlinear differential equations can efficiently be solved using this technique. Impact of the problem parameters for microrotation, temperature, and velocity are interpreted and discussed through tables and graphs. The present numerical results are compared with those presented in previous literature and examined to be in good contact with them. It has been noted that the imposed magnetic field acts as a frictional force which not only increases the shear stresses and heat transfer rates at the channel walls, but also tends to rotate the micro particles in the fluid more rapidly. Furthermore, viscous dissipation may raise fluid temperature to such a level that the possibility of thermal reversal exists, at the geometric boundaries of the domain. It is therefore recommended that external magnetic fields and viscous dissipation effects may be considered with caution in applications where thermal control is required.

Simulation Analysis of Mass and Heat Transfer Attributes in Nanoparticles Flow subject to Darcy-Forchheimer Medium

“…The value of e tol is chosen as 10 -8 . Further details of the solution methodology can be seen in our recently published work [44][45][46][47].…”

Nanoparticle Size and Heat Pipe Angle Impact on the Thermal Effectiveness of a Cylindrical Screen Mesh Heat Pipe

“…A minimal amount of heat is applied to the needle through a sensor to prevent liquid-free convection. The thermal conductivity is measured using a sensor needle and in the present study, the KS-1 sensor needle with 6 cm and 1.27 mm diameter take only a minimum amount of heat, which tends to less disturbance to the nanoparticles in the base fluid during measurements [18].…”

Cumulative Impact of Micropolar Fluid and Porosity on MHD Channel Flow: A Numerical Study

“…The analyses of skin frictions, flow and heat transport on either wall of the channel with porosity effects for different values of material parameters are listed in Table 3. We take random values from the micropolar parameters other than the first case, where C 1 = C 2 = C 3 = 0 is taken for the Newtonian case to determine their combined impact on the flow, as described in [41][42][43][44][45]. Micropolar physical parameters tend to decrease the shear stresses and intensify the rates of heat transfer and mass flow.…”