MHD heat and mass transfer of a ternary hybrid nanofluid over a rotating sphere A. M. Obalalu, Umair Khan, E. O. Fatunmbi, Najiyah Safwa Khashi’ie, Jomana A. Bashatah Discover Nano, 2026 This study examines magnetohydrodynamic (MHD) heat and mass transfer of a ternary hybrid nanofluid over a rotating sphere incorporating thermophoretic particle deposition, thermal radiation, activation energy and chemical reaction effects. The nanofluid consists of [Formula: see text]-[Formula: see text]-[Formula: see text] nanoparticles dispersed in propylene glycol. The governing boundary layer equations are transformed into a system of nonlinear ordinary differential equations via similarity transformations, which are solved using the Gegenbauer wavelet method. Results indicate that increasing magnetic interaction suppresses velocity due to Lorentz force effects while enhancing thermal distribution. Higher nanoparticle volume fraction improves heat transfer but increases viscous resistance. Thermophoresis and activation energy significantly influence mass transfer characteristics. Comparative analysis reveals that the ternary hybrid nanofluid exhibits enhanced thermal performance relative to the corresponding hybrid nanofluid configuration. The findings provide theoretical insight into MHD-controlled rotating nanofluid systems.
Thermal efficiency of MHD micropolar penta-hybrid nanofluid squeezing flow under nonlinear thermal radiation and activation energy effects E.O. Fatunmbi, A.T. Adeosun, S.O. Salawu, O.A. Olaiju International Journal of Thermofluids, 2026 The dynamics of magnetohydrodynamic (MHD) squeezing flow and heat transfer have broad industrial and engineering applications, including micro-electromechanical systems, lubrication technology, squeeze-film dampers, extrusion, rolling, coating processes, and biomedical engineering, where blood flow in narrow arteries is of interest. Motivated by these applications, this study examines the MHD micropolar squeezing flow and thermal behaviour of a nonlinear radiative penta-hybrid nanofluid between two parallel disks under the influence of activation energy. To enhance thermal efficiency, the nanofluid is formulated by dispersing copper ( C u ), silver ( A g ), gold ( A u ), magnesium oxide ( M g O ), and titanium dioxide ( T i O 2 ) nanoparticles in a water base fluid. The penta-hybrid nanofluid comprises Ag, Au, MgO, Cu, and TiO 2 nanoparticles, with equal volume fraction distribution.The governing partial differential equations are reduced to nonlinear ordinary differential equations via similarity transformations and solved using the Spectral Weighted Residual Technique (SWRT). Graphical and tabular results reveal the effects of key parameters on velocity, microrotation, temperature, and concentration profiles, providing insights for optimizing advanced thermal and industrial processes. Increasing the magnetic field decreases fluid velocity but improves heat energy transfer, micropolar effects suppress flow intensity, improving stability and momentum transfer in industrial applications, and higher chemical reaction rates reduce solute concentration, while increased activation energy weakens the concentration gradient.
The role of electromagnetic control and radiative heat transfer in micropolar nanofluid thin-film flow with influence of nanoparticle aggregation Saleh Chebaane, E. O. Fatunmbi, A. M. Obalalu, Sana Ben Khalifa, Ahmad Al Qawasmeh, A. Wahab Hussein, Arwa Azhary International Journal of Modern Physics B, 2025 Efficient heat transfer and minimization of entropy in micropolar nanofluids are essential for applications such as lubrication systems and energy storage devices. Dispersion of nanoparticles helps improve fluid properties like viscosity and thermal conductivity, which enhances system performance. In contrast, aggregation of nanoparticles can reduce these benefits and negatively affect performance. This study investigates the entropy optimization and heat transfer characteristics of an unsteady, laminar thin-film flow of an electromagnetic micropolar nanofluid. The fluid dynamics are modeled using the Maxwell–Bruggeman and Krieger–Dougherty effective medium theories to capture both nanoparticle aggregation and nonaggregation effects. The Krieger–Dougherty model describes the variation in viscosity due to nanoparticle concentration and clustering, while the Maxwell–Bruggeman model characterizes the thermal conductivity as influenced by nanoparticle distribution. Through the application of similarity transformations, the governing partial differential equations are reduced to a set of nonlinear ordinary differential equations, which are then solved numerically using the Chebyshev collocation method. The results indicate that an increase in spin gradient viscosity and electric field leads to a rise in the velocity profile. Moreover, the fluid temperature decreases as the Eringen parameter increases. For nanoparticles without aggregation, the friction coefficient decreases slightly by approximately 0.35%, whereas the Nusselt number increases by about 3.13%.
Exploration of thermal radiation and stagnation point in MHD micropolar nanofluid flow over a stretching sheet with Navier slip Fakhraldeen Gamar, MD. Shamshuddin, M. Sunder Ram, S. O. Salawu, E. O. Fatunmbi Numerical Heat Transfer Part A Applications, 2025 The quest to strengthen heat conduction of thermal science base fluid for effective industrial outputs and engineering derives has recently increased. Thus, this study aims to determine how thermal radiation and slip effects affect the flow of a micropolar nanofluid near a stagnation point over an extending sheet. Using similarity transformations, the flow-controlling partial differential equations (PDEs) are turned into a set of non-linear ordinary differential equations (ODEs). The non-linear system of equations has been solved by the numerical technique Runge-Kutta-Fehlberg integration scheme implementing the shooting technique with suitable conditions to generate a numerical solution. The essential factors affecting the flow are depicted graphically and tabularly. Additionally, a comparison is conducted between the present result and previously published data on the Nusselt and Sherwood numbers; it claims that thermophoresis and Brownian motion vary under some restrictive conditions. An increase in the magnetic field parameter was found to boost the velocity of the micropolar nanofluid. In contrast, a rise in the micropolar parameter reduces the angular velocity.
Thermal Brownian motion and thermophoretic of reacting hybridized nanoparticles in Williamson-water base fluid with convective cooling cylinder S.O. Salawu, A.M. Obalalu, E.O. Fatunmbi, O.Y. Oludoun Hybrid Advances, 2025 The valuable characteristics of copper and aluminium oxide nanoparticles in enhancing the thermal performance of industrial cooling processes have propelled the study. This will give insights into the long-term stability and economic feasibility of nanofluid viscous materials for cooling systems design and potential advancement of nanotechnology. As such, this analysis examines the thermal properties of hybridized C u - A l 2 O 3 nanoparticles dispersed in a convective cooling cylinder containing Williamson-water base solvent. The Williamson-Cauchy fluid model is adopted to represent the rheological complex behaviour of the base fluid adequately. A coupled impact of Brownian motion and thermophoresis are captured to prompt the dynamical interactions at the nanoscale, especially the phenomena influence on the overall heat propagation. A Galerkin-weighted residual technique is employed to solve the transformed invariant governing model, including the momentum, thermal, and reacting species equations. The study used a range of fluid terms to investigate their influences on a cylinder’s thermal distribution and cooling efficiency. The outcomes present that the hybridized C u - A l 2 O 3 nanoparticle substantially enhances the base fluid thermal conductivity, improving the convective heat transport rates. The Brownian motion encourages uniform temperature distribution, while thermophoretic forces support nanoparticles’ effective migration and thermal performance optimization. Also, the chemical reactions pivoted the modulation of temperature and concentration fields to influence the whole heat transfer characteristics.
DYNAMICS OF FLOW AND HEAT TRANSFER MECHANISM OF HYDROMAGNETICMAXWELL FLUID OVER A SPINNING DISK WITH MARANGONI EFFECTS E Fatunmbi, OA Olaiju FULafia Journal of Science and Technology 10 (2), 29-38 , 2026 2026
MHD heat and mass transfer of a ternary hybrid nanofluid over a rotating sphere AM Obalalu, U Khan, EO Fatunmbi, NS Khashi’ie, JA Bashatah Discover Nano 21 (1), 163 , 2026 2026
Thermal efficiency of MHD micropolar penta-hybrid nanofluid squeezing flow under nonlinear thermal radiation and activation energy effects EO Fatunmbi, AT Adeosun, SO Salawu, OA Olaiju International Journal of Thermofluids, 101626 , 2026 2026
An h-Adaptive Finite Element Approach for Efficient Thermal Analysis of Microchip Cooling Systems EO Fatunmbi, OA Olaiju, OA Agbolade Journal of Advances in Mathematics and Computer Science 41 (5), 35-50 , 2026 2026
Thermal Efficiency Enhancement and Entropy Generation Reduction in Solar-powered Water Pumping Systems Using Oldroyd-B Hybrid Nanofluids in Nigeria NO Okoro, EO Fatunmbi, AM Obalalu Asian Journal of Physical and Chemical Sciences 14 (2), 142-156 , 2026 2026
Thermofluid-inspired Nonlinear Entropy Model of Financial Markets with Time-varying External Shocks EO Fatunmbi, MA Akinde, OL Aako, OA Olaiju Current Journal of Applied Science and Technology 45 (4), 122-133 , 2026 2026
Fast and Physically Constrained Modelling of Solar PV Power Output Using an Optimized Ordinary Differential Equation (ODE) Framework OA Olaiju, OA Agbolade, EO Fatunmbi Journal of Energy Research and Reviews 18 (5), 1-18 , 2026 2026
High-Fidelity h-Adaptive Finite Element Simulation of Transient Thermal Fields in Laser-Based Additive Manufacturing O OA, EO Fatunmbi, OA Agbolade, JK Odeyemi, OC Akeremale 2026
Harnessing Hydromagnetic Tangent Hyperbolic Hybrid Nanofluids for Enhanced Heat Transfer and Energy Efficiency in Concentrated Solar Power Systems OJ Olanrewaju, EO Fatunmbi, SO Salawu Journal of Energy Research and Reviews 18 (4), 81-94 , 2026 2026
Entropy Dynamics in Financial Systems: A Thermofluid Framework for Risk, Uncertainty, and Market Inefficiency EO Fatunmbi, MA Akinde, OL Aako Journal of Economics, Management and Trade 32 (4), 118-128 , 2026 2026
Adaptive Finite Element Solution of a Reaction-diffusion Equation with Localized Source Term OA Agbolade, OA Olaiju, EO Fatunmbi Asian Research Journal of Mathematics 22 (4), 149-162 , 2026 2026
Thermodynamic Optimization of Hybrid Nanofluid Flow in Parabolic trough Solar Collectors for Solar-Powered Agricultural Machinery CB Ogunlade, AM Obalalu, EO Fatunmbi Physical Science International Journal 30 (2), 94-108 , 2026 2026
Performance Evaluation of Solar-Based Hybrid Energy Systems Integrating Renewable and Conventional Sources in Nigeria OA Olusola, OA Olaiju, EO Fatunmbi Journal of Engineering Research and Reports 27 (12), 348-363 , 2025 2025
Exploration of ternary-hybrid nanofluid experiencing Coriolis and Lorentz forces: case of three-dimensional flow of water conveying carbon nanotubes, graphene, and alumina … AS Oke, EO Fatunmbi, IL Animasaun, BA Juma Waves in Random and Complex Media 35 (6), 11488-11507 , 2025 2025 Citations: 37
Influence of gyrotactic microorganisms and thermophoretic effects on two-phase nanofluid transport over wedge surfaces in Carreau and Casson liquids S Chebaane, EO Fatunmbi, AM Obalalu, A Al Qawasmeh, L Manai, ... Journal of Thermal Analysis and Calorimetry 150 (20), 16271-16286 , 2025 2025 Citations: 2
The role of electromagnetic control and radiative heat transfer in micropolar nanofluid thin-film flow with influence of nanoparticle aggregation S Chebaane, EO Fatunmbi, AM Obalalu, SB Khalifa, AA Qawasmeh, ... International Journal of Modern Physics B 39 (24), 2550223 , 2025 2025 Citations: 10
Energy optimization in zeta potential electroosmotic Casson-Williamson viscous heating magnetized fluid in a convective cooling microchannel SO Salawu, HA Ogunseye, EO Fatunmbi, MD Shamshuddin Applied Thermal Engineering, 128382 , 2025 2025 Citations: 8
Exploration of thermal radiation and stagnation point in MHD micropolar nanofluid flow over a stretching sheet with Navier slip F Gamar, MD Shamshuddin, MS Ram, SO Salawu, EO Fatunmbi Numerical Heat Transfer, Part A: Applications 86 (17), 6117-6129 , 2025 2025 Citations: 25
Thermal quadratic radiation and entropy optimization of Casson MoS2-SiO2/H2O composite nanofluid in porous Riga plate media and heat loss SO Salawu, TA Yusuf, EO Fatunmbi Surfaces and Interfaces, 107279 , 2025 2025 Citations: 8
Thermal Propagation Effects of Hydromagnetic Micropolar Nanofluid Flow over an Expanding Stagnation-point Surface EO Fatunmbi, OO Akanbi Physical Science International Journal 29 (4), 1-17 , 2025 2025
MOST CITED SCHOLAR PUBLICATIONS
Nonlinear thermal radiation and entropy generation on steady flow of magneto-micropolar fluid passing a stretchable sheet with variable properties EO Fatunmbi, A Adeniyan Results in Engineering 6, 100142 , 2020 2020 Citations: 111
Elastic deformation of thermal radiative and convective hybrid SWCNT-Ag and MWCNT-MoS4 magneto-nanofluids flow in a cylinder SO Salawu, AM Obalalu, EO Fatunmbi, MD Shamshuddin Results in Materials 17, 100380 , 2023 2023 Citations: 89
Nonlinear radiative Eyring-Powell nanofluid flow along a vertical Riga plate with exponential varying viscosity and chemical reaction EO Fatunmbi, AT Adeosun International Communications in Heat and Mass Transfer 119, 104913 , 2020 2020 Citations: 79
Thermal Prandtl-Eyring hybridized MoS2-SiO2/C3H8O2 and SiO2-C3H8O2 nanofluids for effective solar energy absorber and entropy optimization: a solar water pump implementation SO Salawu, AM Obalalu, EO Fatunmbi, RA Oderinu Journal of Molecular Liquids 361, 119608 , 2022 2022 Citations: 78
Magnetohydrodynamic micropolar fluid flow in a porous medium with multiple slip conditions EO Fatunmbi, HA Ogunseye, P Sibanda International Communications in Heat and Mass Transfer 115, 104577 , 2020 2020 Citations: 70
Heat and mass transfer in MHD micropolar fluid flow over a stretching sheet with velocity and thermal slip conditions EO Fatunmbi, A Adeniyan Open Journal of Fluid Dynamics 8 (2), 195-215 , 2018 2018 Citations: 59
Heat transfer in boundary layer magneto‐micropolar fluids with temperature‐dependent material properties over a stretching sheet EO Fatunmbi, SS Okoya Advances in Materials Science and Engineering 2020 (1), 5734979 , 2020 2020 Citations: 58
Analysis of hydromagnetic micropolar nanofluid flow past a nonlinear stretchable sheet and entropy generation with Navier slips EO Fatunmbi, SO Salawu International Journal of Modelling and Simulation 42 (3), 359-369 , 2022 2022 Citations: 57
MHD heat and mass transport of Maxwell Arrhenius kinetic nanofluid flow over stretching surface with nonlinear variable properties SO Salawu, EO Fatunmbi, SS Okoya Results in Chemistry 3, 100125 , 2021 2021 Citations: 52
Entropy generation in the magnetohydrodynamic Jeffrey nanofluid flow over a stretching sheet with wide range of engineering application parameters F Mabood, EO Fatunmbi, L Benos, IE Sarris International Journal of Applied and Computational Mathematics 8 (3), 98 , 2022 2022 Citations: 51
A numerical study of MHD heat and mass transfer of a reactive Casson–Williamson nanofluid past a vertical moving cylinder HA Ogunseye, SO Salawu, EO Fatunmbi Partial Differential Equations in Applied Mathematics 4, 100148 , 2021 2021 Citations: 51
Thermodynamic second law analysis of magneto-micropolar fluid flow past nonlinear porous media with non-uniform heat source EO Fatunmbi, SO Salawu Propulsion and Power Research 9 (3), 281-288 , 2020 2020 Citations: 50
Convective heat transfer analysis of hydromagnetic micropolar fluid flow past an inclined nonlinear stretching sheet with variable thermo-physical properties EO Fatunmbi, SS Okoya, OD Makinde Diffusion Foundations 26, 63-77 , 2020 2020 Citations: 43
Inherent irreversibility of hydromagnetic third-grade reactive poiseuille flow of a variable viscosity in porous media with convective cooling SO Salawu, EO Fatunmbi Journal of the Serbian Society for Computational Mechanics 11 (1), 46-58 , 2017 2017 Citations: 38
Exploration of ternary-hybrid nanofluid experiencing Coriolis and Lorentz forces: case of three-dimensional flow of water conveying carbon nanotubes, graphene, and alumina … AS Oke, EO Fatunmbi, IL Animasaun, BA Juma Waves in Random and Complex Media 35 (6), 11488-11507 , 2025 2025 Citations: 37
Comparative analysis between copper ethylene-glycol and copper-iron oxide ethylene-glycol nanoparticles both experiencing Coriolis force, velocity and temperature jump F Wang, EO Fatunmbi, AT Adeosun, SO Salawu, IL Animasaun, IE Sarris Case Studies in Thermal Engineering 47, 103028 , 2023 2023 Citations: 37
MHD stagnation point-flow of micropolar fluids past a permeable stretching plate in porous media with thermal radiation, chemical reaction and viscous dissipation EO Fatunmbi, A Adeniyan J. Adv. Math. Comput. Sci 26 (1), 1-19 , 2018 2018 Citations: 37
MHD Micropolar Fluid Flow Over a Permeable Stretching Sheet in the presence of Variable Viscosity and Thermal Conductivity with Soret and Dufour Effects. EO Fatunmbi, OJ Fenuga International Journal of Mathematical Sciences and Optimization: Theory and … , 2017 2017 Citations: 37
Entropy analysis of nonlinear radiative Casson nanofluid transport over an electromagnetic actuator with temperature-dependent properties EO Fatunmbi, AT Adeosun, SO Salawu Partial Differential Equations in Applied Mathematics 4, 100152 , 2021 2021 Citations: 36
Comparative assessment of propylene glycol Molybdenum disulfide (MoS2) and silicon dioxide (SiO2) Prandtl-Eyring fluid experiencing non-uniform heat source, Navier slips and … EO Fatunmbi, SO Salawu, AM Obalalu Inorganic Chemistry Communications 158, 111569 , 2023 2023 Citations: 35