Prescribed thermal effects on the dynamics of radiative and chemically reactive hyperbolic tangent nanofluid

Abstract

ABSTRACT The dynamics of hyperbolic tangent nanofluid, coupled with thermal radiation and chemical reactions, find extensive applications in various fields, including drying processes, oil emulsions, ceramics, prevention of crop damage from freezing, and dehydration processes. Therefore, the primary objective of the present contribution is to scrutinize the dynamic behavior of hyperbolic tangent nanofluid with consideration for both chemical reactions and thermal radiation effects subject to a prescribed thermal system. To model the nanofluid’s behavior, we have employed Buongiorno’s nanofluid model, which incorporates random motion and thermo-diffusion of nanostructured particles. The thermal performance of the hyperbolic tangent nanofluid is analyzed under two boundary conditions: prescribed surface temperature (PST) and prescribed heat flux (PHF). To facilitate the analysis, we have transformed the transport PDEs in Cartesian configuration into ODEs. Subsequently, we have employed the highly efficient HAM (homotopy analysis method) to solve the obtained system. The study explores the influence of various flowing constraints on key configurations such as temperature formation, velocity formation, concentration formation, local drag formation, Nusselt number, and Sherwood number. Notably, the Nusselt number diminishes with the inclusion of thermo 0.2 ≤ N t ≤ 1.1 and Brownian 0.3 ≤ N b ≤ 1.1 diffusions of nanoparticles, while it increases with an escalation in the thermal radiation 0.0 ≤ R d ≤ 2.5 parameter.