Work

Dynamics analysis of entropy generation in magnetized radiative Walters-B hybrid nanofluid flow with dissipative transport over a porous rectangular frame

Year: 2026

Type: article

Abstract: Fluid movement and heat transmission inside a rectangular framework have a broad range of technical applications, like generating electricity, nuclear reactors, and power systems. Researchers are now focused on enhancing heat transfer (HT) rates utilising hybrid nanofluid (HNF). The current study aims to explore the steady, incompressible circulation of hybrid nanofluids comprising aluminum oxide and graphene nanoparticles mixed with water inside a porous rectangular framework. The study investigates the Walter B model flow under the influence of the magnetic parameter. Furthermore, entropy generation, heat transfer, and Bejan number are investigated under the effects of thermal radiation, Joule heating, Cattaneo-Christov heat flux (CCHF) model, and viscous dissipation. Furthermore, the physical quantities are investigated. The nonlinear governing partial differential equations (PDEs) are altered to ordinary differential equations (ODEs) utilizing similarity transformations. The homotopy analysis method (HAM) in Mathematica is then used to solve the dimensionless system of equations. Graphical and tabular results are presented to examine the effects of governing parameters on the flow and thermal characteristics. The results show that greater magnetic factors reduce velocity components, whilst Walters-B parameter increases the secondary velocity but decreases the primary velocity. As magnetic parameters increase, the temperature profile improves, but the skin friction coefficient drops. The Nusselt number increases with Biot number. For increasing Brinkman number the entropy generation increases, while Bejan number decreases.

Source: Physics Open

DOI: 10.1016/j.physo.2026.100509

Authors: Meshal Shutaywi, Muhammad Rooman, Saira yousaf, Zahir shah, Narcisa Vrinceanu

Institutions: King Abdulaziz University, Gomal University, University of Lakki Marwat, Lucian Blaga University of Sibiu

Language: English

Topic: Nanofluid Flow and Heat Transfer

Subfield: Fluid Flow and Transfer Processes

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,700

Funder: Universitatea "Lucian Blaga" din Sibiu