Magnetohydrodynamic hybrid nanofluid flow with Cattaneo–Christov heat flux: thermal performance and entropy analysis

In the study, the Cattaneo–Christov heat flux model acts as a cooling mechanism by regulating the energy boundary layer. This study analyzes the flow and thermal behavior of nanofluid containing brick and platelet shape (ZnO–TiO 2 ) nanoparticles suspended in ethylene glycol over a radially stretchi...

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Bibliographic Details
Published in:Multiscale and Multidisciplinary Modeling, Experiments and Design Vol. 8; no. 3
Main Authors: Ragavi, M., Sreenivasulu, P., Poornima, T.
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01.03.2025
Subjects:
Characterization and Evaluation of Materials
Engineering
Mathematical Applications in the Physical Sciences
Mechanical Engineering
Numerical and Computational Physics
Original Paper
Simulation
Solid Mechanics
Radially stretching sheet
MHD
Viscous dissipation
Nanofluid
Joule heating
ISSN:2520-8160, 2520-8179
Online Access:Get full text
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Summary:In the study, the Cattaneo–Christov heat flux model acts as a cooling mechanism by regulating the energy boundary layer. This study analyzes the flow and thermal behavior of nanofluid containing brick and platelet shape (ZnO–TiO 2 ) nanoparticles suspended in ethylene glycol over a radially stretching sheet by utilizing Tiwari das model. The flow model obeying equations is untangled using a BVP4C solver with MATLAB. Moreover, a thorough analysis of tables and graphs is conducted to scrutinize the impact of different parameters on the temperature and velocity profiles. A comparison of platelet and brick nanoparticles is made, and it is seen that platelet-shaped nanoparticles exhibit superior flow motion and heat transmission properties than brick-shaped nanoparticles. Discoid-shaped particles enhance heat transfer due to their large surface area and improved dispersion within the base fluid. It has been observed that platelet-shaped nanoparticles increase by 7.50% over brick-shaped nanoparticles at a volume fraction of 4%. These findings demonstrate that the shape of nanoparticles has a profound impact on the thermal transfer and fluid flow behavior of the nanofluid. The flow of ZnO–TiO 2 /Ethylene glycol nanofluid over a radially stretching surface has significant potential for enhancing cooling mechanisms in electronic devices like computers and smartphones, as well as in heat exchanger systems. The improved heat transfer characteristics of this nanofluid offer a promising solution for more efficient thermal management in these applications.
ISSN:2520-8160
2520-8179
DOI:10.1007/s41939-025-00751-0