Numerical Computation of Transient Magnetohydrodynamic Micropolar Fluid Flow through a Permeable Surface
DOI:
https://doi.org/10.62292/njp.v34i1.2025.388Keywords:
Micropolar Fluid, Magnetohydrodynamic, Non-Constant Viscosity, Permeable SheetAbstract
The study of magnetohydrodynamic (MHD) micropolar fluid flows through permeable media is gaining increasing relevance due to its broad applicability in industrial and geophysical processes. Micropolar fluids, which exhibit microstructure and microrotation effects, offer a more realistic description of complex fluids such as lubricants, blood, and polymeric suspensions.The present study investigates into the transient phenomenon of a magneto-micropolar fluid configured in a permeable material device. This analysis suits flow in reservoirs, metal casting, and composite manufacturing, petroleum industry, particularly in modelling fluid flow in porous rocks during enhanced oil recovery operations. The understanding of micropolar fluid dynamics in permeable media has been applied to model groundwater flow and contamination remediation strategies. The boundary layer, Boussinesq approximations and some necessary assumptions are used to formulate the mathematical model for the present problem. The model consists of the effects of the non-constant thermophysical properties, viscous and Joule heating properties. The highly coupled nonlinear equations are solved numerically using the unconditionally stable Runge-Kutta Fehlberg method and the shooting techniques. The consequence of the numerical analysis conducted is displayed in various plots and tables for the interpretation of results. The results indicate a reduction in the momentum and thermal boundary structures while the transient term is enhanced is enhanced as reported in the existing literature. The porosity and the magnetic field parameters caused a decelerating motion and raised the thermal distribution as the material term boosts the fluid flow.
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