Local Thermal Non-Equilibrium Effects on Marangoni Convective Flow of Casson Fluid with Elastic Deformation: Perspective of Cattaneo–Christov Flux Model

Abstract
This work investigates the effects of local thermal non-equilibrium impacts on the chemical reactive flow of Casson fluid under elastic deformation over a sheet. The modified theory for mass and heat transport is the generalized Cattaneo-Christov theory, which takes into consideration the importance of relaxation times. Chemical reactors, heat exchangers, and geothermal systems are examples of engineering applications where precise temperature control between various materials or phases is required to maximize performance and efficiency. These applications depend on local thermal non-equilibrium conditions. In systems that use non-Newtonian fluids, as those found in polymer manufacturing, petroleum drilling, and food industry applications, this model can be applied to maximize heat and mass transmission. The Cattaneo-Christov heat flow theory provides a more accurate depiction of thermal behaviour in such fluids by accounting for thermal relaxation effects. In chemically reactive situations, these effects are crucial for increasing energy conversion, speeding up reaction rates, and creating efficient heat management systems. The relevant similarity variables are condensed, and then the model equation system is numerically resolved using the bvp4c method. The higher the interphase heat transfer value, the lower the thermal profile of the Casson fluid\'s solid and fluid phases.

Author
Talib K. Ibrahim

DOI
https://doi.org/10.1016/j.ijft.2025.101268

Publisher

ISSN
2666-2027

Publish Date: