Numerical investigation on the thermal transportation of MHD Cu/Al 2 O 3-H 2 O Casson-hybrid-nanofluid flow across an exponentially stretching cylinder incorporating heat source

Abstract

Abstract This paper investigates the stagnation point flow and heat transfer of MHD boundary layer Casson hybrid nanofluid through a porous space across an exponentially stretched cylinder. The heat source impact is also considered in the model. A 3-stage Lobatto IIIa formula, Bvp4c, is operated to obtain the numerical findings. The influences of dimensionless parameters, namely Prandtl number, Reynolds number, heat source parameter, and Casson fluid parameter on Skin-friction coefficient, velocity, thermal profile, and Nusselt number, are portrayed graphically and depicted through tables. The significant findings indicate that the hybrid Casson nanofluids have a higher thermal conductivity when compared to the Casson nanofluids. As a result, the Casson hybrid nanofluid fluid has a significant impact on increasing heat processes. It has been investigated that the coefficient of the absolute Skin friction for Casson hybrid nanofluid is raised up to 29% compared to Casson nanofluid. The effective heat transfer rate of Casson hybrid nanofluid is improved over 9% compared to Casson nanofluid. As the heat source and Casson fluid parameters are incremented, the numeric values of the Nusselt number reduce.