Magnetized Micropolar Fluid Flow With Variable Properties Over a Squeezing Surface

ABSTRACT This study numerically examines the flow of a chemically reactive, magnetized micropolar fluid over a sensor surface between two horizontal plates, where the upper plate moves in a squeezing motion. It uniquely incorporates variable thermal conductivity and variable mass diffusivity into the heat and mass transfer equations. The governing equations are solved using the bvp4c algorithm. Key findings reveal that higher squeezing reduces velocity, temperature, and concentration distributions. Increasing micropolar parameters enhances velocity, whereas variable thermal conductivity raises temperature profiles. Greater molecular diffusivity and chemical reaction parameters accelerate mass transfer rates, and the drag force intensifies with higher squeezing. Additionally, it is also noted that the squeezing parameter with a value ( c = 0.2) demonstrated a stronger heat transmission rate ( Nu = 0.33062) than the mass transfer rate ( Sh = 0.2544).