A Study of Soret-Dufour Effects on MHD Radiative Casson Nanofluid Flow Past an Inclined Surface with Chemical Reaction

Abstract

This study investigates the impact of heat flux induced by concentration gradients (Dufour effects) and temperature gradients (Soret effects) on the boundary layer flow of a Casson nanofluid over an inclined expanding surface. It also considers heat and mass transfer coupled processes, Brownian motion, thermal radiation, chemical reactions, and thermophoresis. A dimensionless problem is formulated using similarity transformations and solved using the homotopy analysis method (HAM). Tables and graphs are employed to illustrate the correlations between influencing factors and physical quantities. It is observed that an increase in the inclination parameter leads to a reduction in skin friction but an enhancement in Nusselt and Sherwood numbers. The inclination parameter causes a decline in velocity, while the opposite trend is observed in the concentration field for the chemical reaction parameter. The Casson parameter decelerates the velocity and accelerates the distributions of temperature and concentration. The findings provide valuable insights into the flow patterns, temperature distribution, and concentration profiles within the system. This information holds significant relevance for designing and optimizing heat transfer systems, energy-efficient processes, and catalytic reactors involving Casson nanofluids. Our claims are validated by comparison with published literature, demonstrating a high degree of agreement.