Dual solution of heat transfer in hydromagnetic micropolar fluid flow over a stretching sheet in a porous media: A numerical approach

Abstract

In this study, the researcher looks at the heat transmission of an incompressible magnetohydrodynamics micropolar fluid across a moving stretched surface in a Darcian permeable medium. The proper boundary conditions are used to facilitate the numerical solution (bvp4c) of the transformed governing equations. Graphical discussions have been made of the influence of the physical parameters on the velocity, angular velocity (microrotation), and temperature, and the distributions are accentuated on the plots via MATLAB. The study is validated by the previous work and it is found appropriate for investigation, where the absolute difference between the previous work and the present investigation by adopting the finite difference scheme is smaller than 1 0 − 5 <math altimg="urn:x-wiley:26884534:media:htj22737:htj22737-math-0001" wiley:location="equation/htj22737-math-0001.png" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mrow><mn>1</mn><msup><mn>0</mn><mrow><mo>\unicode{x02212}</mo><mn>5</mn></mrow></msup><mspace width="1em"/></mrow></mrow></math>which implies that the scheme is stable and convergent. The microrotation has a great impact on the micropolar fluid with the influences of buoyancy forces, source, and suction over the stretching surface in a Darcian regime. With a rise in the heat source parameter, both velocity and microrotational profiles lessen, but the opposite is true for temperature. Eringen number ( E r <math altimg="urn:x-wiley:26884534:media:htj22737:htj22737-math-0002" wiley:location="equation/htj22737-math-0002.png" xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mrow><msub><mi>E</mi><mi>r</mi></msub></mrow></mrow></math>) rises with the flow velocity, whereas temperature and microrotational profiles show the reverse relationship. The current study focused on particular applications in non‐Newtonian fluid mechanics, polymer flows in filtration systems and metallurgical procedures that included cooling unbroken strips or filaments via a static fluid.

COMSOL Multiphysics simulation of hydromagnetic flow in horizontal channels with diverse media: Insights into momentum and heat diffusion limitations

“…The important role played by thermal radiation in their research contributes to a better understanding of fluid behavior. Last but not least, Hussain and Ahmed 25 added to the conversation by exploring how a magnetic field controls the motion along a stretched surface implanted in a material of pores in a fluid type of micropolar, furthering our understanding of this complex field of study. The unsteady MHD flow of Casson fluid through a porous channel has been investigated by Gangadhar et al 26 The influence of bioconvection on the flow behavior of Williamson nanofluid over a stretching cylinder was numerically investigated by Gangadhar et al 27 The time dependent flow of Powell Eyring nanofluid over a vertical stretching sheet with entropy minimization was analyzed by Gangadhar et al, 28 they reported that the rise in the Brinkman number and Reynolds number enhances the entropy of the system.…”