Modeling and analysis of peristalsis of hybrid nanofluid with entropy generation

This investigation intends to explore the peristaltic transport of rotating fluid in a channel. The channel is considered symmetric with flexible walls, and porous medium fills the saturated space. In this analysis, hybrid nanofluid consisting of titanium oxides and copper particles is taken. Water is used as the base fluid. MHD and Hall effects are employed in this problem. Formulation of energy equation is based on radiation and non-uniform heat source or sink parameter. Convection conditions are utilized for the boundary. Thermodynamics second relation is employed for entropy generation. Maxwell-Garnetts model of thermal conductivity is employed. Numerical analysis is carried out using NDSolve of Mathematica. The effect of nanoparticle volume fraction, Taylor number, Hartman number, porosity and Hall parameters is analyzed for axial and secondary velocities, temperature, entropy generation and heat transfer rate. This study divulges that an enhancement in rotation parameter caused an increase in secondary velocity. Moreover, as volume fraction of nanoparticles enhances from 0.01 to 0.04, decay is noticed in fluid's axial and secondary velocities. In this case, entropy also decreases. This study further disclosed that heat transfer rate gradually increases as we exceed the volume fraction of nanoparticles from 0.02 to 0.08. More pores also lead to an enhancement in fluid velocity, temperature and entropy.

Automated summary

This study investigates the peristaltic transport of rotating fluid in a channel using a hybrid nanofluid. The effects of nanoparticle volume fraction, Taylor number, Hartman number, porosity, and Hall parameters on axial and secondary velocities, temperature, entropy generation, and heat transfer rate are analyzed. Findings include an increase in secondary velocity with rotation parameter enhancement, and a decrease in fluid velocities and entropy as nanoparticle volume fraction increases. Additionally, heat transfer rate gradually increases with nanoparticle volume fraction surpassing certain values, and more pores lead to an enhancement in fluid velocity, temperature, and entropy.