Entropy generation analysis for peristalsis of nanofluid with temperature dependent viscosity and Hall effects

Entropy generation analysis for peristalsis of nanofluid with temperature dependent viscosity has been carried out. Mathematical formulation is executed using "long wavelength" approximation. Hall effects and Ohmic heating are also included. Arising non-linear equations are solved using Homotopy Perturbation Method. Analytical solutions for temperature, axial velocity, Bejan number and entropy generation are obtained and examined through graphs. Results show that for enhanced values of nanoparticles volume fraction both velocity and temperature decreases. Increasing values of viscosity parameter decreases the temperature. Moreover, entropy generation and Bejan numbers show decreasing behaviors for increase in nanoparticles volume fraction.