Zeta potential and laser radiation effects on entropy management in tetra hybrid nanofluid

Abstract This research is conducted to examine the combined effects of zeta potential and laser radiation on entropy generation analysis of tetra hybrid nanofluid through the peristaltic porous complex waves. The blood is taken as a base fluid and four different type of spherical shape nanoparticles are mixed into it to make the tetra hybrid nanofluids. The thermal boundary conditions are imposed on both walls to study the role of thermal boundary conditions in peristaltic waves. The mathematical model is developed with the help of constitutive laws and extra stress tensor of the Jeffrey fluid. The developed mathematical model is simplified under the assumptions of low zeta potential and lubrication approach and obtained the exact solution by using Wolfram Mathematica 14.3. The exact solutions of velocity and temperature is used in entropy generation equation to discuss the irreversibility analysis. The obtained solutions are used to construct the graphs under the impact of physical parameter with the admissible range. The computational results revealed that zeta potential, Hartmann number and Darcy number decline the flow field in the core region of the channel and increases near the wall of the channel but slip parameter and Jeffrey fluid parameter increased the velocity distribution in the core part and decreases near the wall of the channel. The temperature field increases versus zeta potential and electro osmotic parameter while Hartmann number and thermal radiation parameter decline the temperature distribution. Moreover, the entropy generation increases versus Brinkman number and Hartmann number.