Numerical comparative study of squeezing couple–stress hybrid nanofluid (SiO 2 +Al 2 O 3 /blood) with heat source/sink and activation energy

Key Points

• This study aims to explore the heat and mass transfer behavior in couple-stress hybrid nanofluid flow considering heat generation and absorption effects.
• Utilizes numerical methods to model magnetohydrodynamic flow in a squeezed channel.
• Applies similarity transformations to reduce governing partial differential equations to ordinary differential equations.
• Uses the fourth-order Runge-Kutta scheme along with shooting method for solving the equations.
• Concentration distribution decreases with dimensionless parameters but increases with activation energy.
• Temperature distribution shows an opposite trend compared to concentration.
• Skin friction rises by 4.96% with an increase in the magnetic parameter from 1 to 3.
• Nusselt number increases by 17.24% under heat generation and 20.77% under heat absorption as couple stress increases.