Mixed Convective Peristaltic Flow of Ree-Eyring Fluid with Injection/Suction and Chemical Reaction through a Porous Microchannel

• Analysis of peristaltic flow in porous media with injection/suction and magnetic field effects (MHD), addressing transport. • Evaluation of pressure-driven flow with internal heat generation and first-order chemical reaction, affecting heat and mass transfer. • Quantification of skin friction, Nusselt number, and Sherwood number to assess momentum, thermal, and concentration layers. • Investigation of pressure rise and stream function behaviour shows flow modulation from coupled factors, including magnetic field and porous structure. • Findings provide insight into optimising biomedical, industrial, and environmental systems using peristaltic transport under multi-physical effects. . Peristaltic transport is a fundamental process that drives physiological functions and engineered systems by generating fluid movement through wave-like wall contractions. The research focuses on peristaltic flow and mixed convection of Ree-Eyring fluid in a porous channel under magnetohydrodynamic (MHD) effects, convective thermal boundary conditions, wall injection and suction, and homogeneous chemical reactions, due to its wide biomedical and industrial applications. A mathematical model has been developed by combining momentum, energy, and concentration equations that include buoyancy forces, nonlinear rheology, magnetic interactions, and chemical reaction. The results show that wall injection increases the axial velocity and solute concentration near the wall, whereas suction reduces the solute concentration. When Lorentz and drag forces are present, both the strength of the magnetic field and the porous resistance restrict the flow in the same way. Finally, the rates of chemical processes have a greater impact on the concentration profile than either wall injection or suction. While the convective boundary condition provides a more comprehensive understanding of heat transfer than the isothermal boundary condition, modelling it for real-world applications remains challenging. This information is highly helpful for understanding heat and mass transfer, electromagnetic forces, and chemical reactions that happen in peristaltic systems. These modifications may prove advantageous in industries such as reactive transport industrial reactors, biomedical pumps, microfluidic devices, and drug delivery.