Effect of Magnetic Field on Micropolar Fluid Flow Through Coaxial Rotating Cylinders Filled With Porous Material

This study explores the significant influence of a uniform magnetic field on electrically conducting micropolar fluids in a porous annular region between two rotating cylinders. Such research is vital for understanding fluid behavior in engineering applications, including magnetohydrodynamics and porous media flows. The aim of the study is to examine the effects of boundary conditions-spin and no-spin-on the velocity and micropolar velocity profiles of the fluid. An analytical approach is employed, deriving solutions for velocity, micro rotation, shear stress, and couple stress under varying conditions. The key parameters analyzed include the permeability parameter, micropolar parameter, and Hartmann number, with their impacts evaluated through theoretical discussion and graphical representation. The major conclusion highlights that these parameters significantly affect the flow characteristics, offering deeper insights into controlling fluid dynamics in micropolar and porous systems.