Numerical investigation on MHD non-Newtonian pulsating Fe3O4-blood nanofluid flow through vertical channel with nonlinear thermal radiation, entropy generation, and Joule heating Kannaiah Govindarajulu, Anala Subramanyam Reddy, Devendiran Rajkumar, Thiyagarajan Thamizharasan, Maddina Dinesh Kumar, Kuppala Raja Sekhar Numerical Heat Transfer Part A Applications, 2026 The main aim of the present investigation is to examine the effect of nonlinear thermal radiation, slip, and Joule heating on MHD Pulsatile flow of third-grade ferro-nanofluid via vertical channel with entropy generation. The significance of this study is that it has plenty of physiological applications like cancer treatment, vitamin injections, dialysis, heart–lung machines during surgeries and industrial applications like filtration, pharmaceutical fluid production, and dispensing cosmetic/glue emulsions with no contamination. Furthermore, the ferro-nanoliquid model is the best model for numerous bio/industrial fluids. Therefore, this study explores the entropy analysis of pulsating third-grade ferro-nanoliquid flow between two parallel vertical walls under an applied magnetic field. Blood is taken as a base fluid (third grade), and iron oxide is used as nanoparticles. The governed nonlinear partial differential equations (PDEs) are nondimensionalized, and then the perturbation technique is employed to attain the set of nonlinear ordinary differential equations (ODEs). The bvp4c technique with MATLAB software is utilized to obtain the solutions for the set of ODEs. The deviations in several physical quantities on the flow variables are deployed via graphs. An increment in Eckert number and radiation parameter accelerates the temperature. Entropy generation rate and Bejan number are accelerated for greater values of radiation parameter. The values of the skin friction and Nusselt number against various physical parameters are presented in tables.
Magnetohydrodynamic micropolar nanofluid flow with pulsation in a vertical permeable channel with Brownian motion, thermophoresis, and thermal radiation: a Buongiorno model approach D Rajkumar, A Subramanyam Reddy, K Govindarajalu, K Vajravelu, T Thamizharasan, K Jagadeshkumar Physica Scripta, 2025 The current paper investigates the magnetohydrodynamic pulsating flow of micropolar nanofluid in a vertical porous channel by using Buongiornos nanofluid approach and utilizing entropy generation. The effects of thermal radiation, viscous dissipation, Brownian motion, and thermophoresis are considered. This finding holds implications for the fields of biomedical engineering, food processing systems, cancer treatment, pressure spikes, and nano-drug delivery in arteries. In this case, the governing partial differential equations (PDEs) are converted into ordinary differential equations (ODEs) using the perturbation approach and we used Runge-Kutta fourth order method for the numerical approach. Graphical representations illustrate the effects of nanoparticle concentration, velocity, temperature, and micro-rotation across various standard physical parameters. Furthermore, analysis and tabular presentation of the heat and mass transfer rates are provided. The data obtained indicate that while raising the Hartmann number and coupling parameter decreases velocity profiles then increasing the Grashof number enhances velocity. The temperature of a micropolar nanofluid rises with increased Brownian motion and thermophoresis, and falls with increased magnetic field and thermal radiation. The concentration of micropolar nanofluid is reducing by enhancing the thermophoresis and chemical reaction parameter. The rate of heat transfer is increasing as a result of increases in thermal radiation, viscous dissipation, thermophoresis, and Brownian motion values. The heat transfer rate rises with increase values of the viscous dissipation, thermal radiation, the Brownian motion, and the thermophoresis parameters. This study is useful for various real life applications like biological systems, biotechnology, pharmaceutical medicine, nano-drug development, and engineering industries.
A comparative study on pulsating flow of Au + SWCNT/blood and Au + MWCNT/blood based Jeffrey hybrid nanofluid in a vertical porous channel with entropy generation A. Subramanyam Reddy, T. Thamizharasan, B. Rushi Kumar, V. Ramachandra Prasad, K. Jagadeshkumar Numerical Heat Transfer Part A Applications, 2024 In the present exploration, entropy production on hydromagnetic pulsating flow of Au + SWCNT/blood and Au + MWCNT/blood-based Jeffrey hybrid nanofluid in a vertical porous channel with Cattaneo-Christov theory has been inspected. The impacts of Ohmic heating, viscous dissipation, and thermal radiation are considered. The transformation of the governing partial differential equations into a system of ordinary differential equations is made by applying the perturbation method and then numerically solved by the fourth-order Runge-Kutta method aided by bvp4c shooting technique built-in MATLAB software. The effects of various emerging parameters and variables on velocity, temperature, entropy generation, and the Bejan number are displayed through graphs. The consequences of physical parameters on heat transfer rate are prearranged in a table. This analysis demonstrates that the velocity of both hybrid nanofluids is intensified with an upsurge in the Grashof number, while it is decreasing by giving higher values in an applied magnetic field. The temperature of both hybrid nanofluids increases with an increment in the radiation parameter, and Eckert number. The entropy generation is an increasing function of Eckert number and radiation parameter. The heat transfer rate has a higher impact in the case of (Au + MWCNT/blood) hybrid nanofluid as compared to (Au + SWCNT/blood) hybrid nanofluid and mono nanofluid.
Pulsatile flow of Jeffrey hybrid nanofluid in a vertical channel with entropy generation A. S. Reddy, T. Thamizharasan Indian Journal of Chemical Technology, 2023 This study examines the hydrodynamic pulsatile flow of Jeffrey hybrid (Au+Al 2 O 3 /Blood) nanofluid in a vertical channel with entropy production. The literature shows that the investigations are only related to the pulsating flow of nanofluid. Any study related to the pulsating flow of Jeffrey hybrid nanofluid in a vertical channel with Joule heating, thermal radiation, and heat source/sink did not report so far. The novelty of the present work is the investigation of entropy generation on pulsatile flow of Jeffrey hybrid nanofluid with Joule heating, thermal radiation and heat source/sink effects in a vertical channel. The transformation of the governing partial differential equations into a system of ordinary differential equations are made by applying the perturbation method and then numerically solved by fourth-order Runge-Kutta method aided by bvp4c shooting technique built-in MATLAB software. This work is useful for chemical engineering, blood cancer treatment, nano-drug delivery, pharmaceutical process, and biomedical aspects.The effects of various emerging parameters and variables on velocity, temperature, entropy generation, and the Bejan number are displayed through graphs. The consequences of physical parameters on heat transfer rate are prearranged in a table. This analysis demonstrates that the temperature of hybrid nanofluid increases with an increment in radiation parameter, and Eckert number. The entropy generation is an increasing function of Eckert number and radiation parameter whereas it decelerates with a rise in Hartmann number. The heat transfer rate has a higher impact in the case of (Au+Al 2 O 3 /Blood) hybrid nanofluid as compare to mono nanofluid.
Entropy Generation on Pulsatile Hydromagnetic Flow of Jeffrey Nanofluid in a Porous Channel with Brownian Motion, Thermophoresis, and Heat Source/Sink Using Cattaneo-Christov Heat Flux T. Thamizharasan, A. S. Reddy Indian Journal of Pure and Applied Physics, 2022 In this work, the entropy generation on MHD pulsatile flow of Jeffrey nanofluid in a porous channel with Cattaneo-Christov theory is investigated. Buongiorno nanofluid model is utilized to see the impact of thermophoresis and Brownian motion. The consequences of thermal radiation, heat source/sink, viscous dissipation, and Ohmic heating are considered. The governing equations are transformed to a system of ordinary differential equations by applying the perturbation procedure then numerically tackled with fourth-order Runge-Kutta scheme aided by shooting technique. The influences of different emerging parameters and variables on velocity, temperature, nanoparticles concentration, entropy generation, and Bejan number are presented graphically. The influence of emerging parameters on heat and mass transfer rates are prearranged in table. The temperature of nanofluid increases with an enhancement in Eckert number, thermophoretic, and Brownian movements, whereas it decelerates for the rising values of cross flow Reynolds number. The concentration of nanoparticles diminishes with an increment in the Lewis number, chemical reaction parameter, and Brownian motion parameter whereas it improves with a rise in thermophoresis parameter. The entropy generation is an increasing function of Eckert number and radiation parameter. Further, the Bejan number is enhanced for increasing the values of Hartmann number.
PULSATING HYDROMAGNETIC FLOW OF AU-BLOOD JEFFREY NANOFLUID IN A CHANNEL WITH JOULE HEATING AND VISCOUS DISSIPATION T. Thamizharasan, Anala Subramanyam Reddy Nanoscience and Technology, 2022 This work studies the impact of pulsating hydromagnetic flow of Au-blood non-Newtonian nanofluid in a channel in the presence of Joule heating, viscous dissipation, and thermal radiation. Blood is taken as Jeffrey fluid (base fluid) and Au as nanoparticles. The Maxwell−Garnett model for thermal conductivity of nanofluid is considered. Flow is induced by pressure gradient. Analytical expressions for dimensionless flow variables are obtained by employing perturbation method. The influence of different parameters on velocity, temperature, and rate of heat transfer have been analyzed. The results reveal that the velocity of nanofluid is increased with increasing frequency parameter while it decreases with increasing magnetic field and volume fraction. The temperature of nanofluid is increased by increasing viscous dissipation. The rate of heat transfer rises with an increase in nanoparticle volume fraction and viscous dissipation.
Numerical investigation on MHD non-Newtonian pulsating Fe 3 O 4 -blood nanofluid flow through vertical channel with nonlinear thermal radiation, entropy … K Govindarajulu, A Subramanyam Reddy, D Rajkumar, T Thamizharasan, ... Numerical Heat Transfer, Part A: Applications 87 (1), 2314730 , 2026 2026 Citations: 15
Magnetohydrodynamic micropolar nanofluid flow with pulsation in a vertical permeable channel with Brownian motion, thermophoresis, and thermal radiation: a Buongiorno model … D Rajkumar, A Subramanyam Reddy, K Govindarajalu, K Vajravelu, ... Physica Scripta 100 (1), 015205 , 2025 2025 Citations: 14
A comparative study on pulsating flow of Au+ SWCNT/blood and Au+ MWCNT/blood based Jeffrey hybrid nanofluid in a vertical porous channel with entropy generation A Subramanyam Reddy, T Thamizharasan, B Rushi Kumar, ... Numerical Heat Transfer, Part A: Applications 85 (15), 2517-2533 , 2024 2024 Citations: 22
Pulsatile flow of Jeffrey hybrid nanofluid in a vertical channel with entropy generation AS Reddy, T Thamizharasan Indian Journal of Chemical Technology (IJCT) 30 (4), 534-546 , 2023 2023 Citations: 2
Pulsating hydromagnetic flow and heat transfer of Jeffrey ferro-nanofluid in a porous channel: a dynamics of blood T Thamizharasan, AS Reddy The European Physical Journal Special Topics 231 (6), 1205-1214 , 2022 2022 Citations: 5
Entropy generation on pulsatile hydromagnetic flow of Jeffrey Nanofluid in a porous channel with Brownian motion, thermophoresis, and heat source/sink using Cattaneo-Christov … T Thamizharasan, AS Reddy Indian Journal of Pure & Applied Physics (IJPAP) 60 (8) , 2022 2022 Citations: 6
Comparison of unsteady incompressible micropolar and nanofluid flow with heat transfer applications D Rajkumar, K Govindarajulu, T Thamizharasan, AS Reddy, ... Micro and Nanofluid Convection with Magnetic Field Effects for Heat and Mass … , 2022 2022
Pulsating hydromagnetic flow of Au-blood Jeffrey nanofluid in a channel with Joule heating and viscous dissipation T Thamizharasan, AS Reddy Nanoscience and Technology: An International Journal 13 (2) , 2022 2022 Citations: 4
MOST CITED SCHOLAR PUBLICATIONS
A comparative study on pulsating flow of Au+ SWCNT/blood and Au+ MWCNT/blood based Jeffrey hybrid nanofluid in a vertical porous channel with entropy generation A Subramanyam Reddy, T Thamizharasan, B Rushi Kumar, ... Numerical Heat Transfer, Part A: Applications 85 (15), 2517-2533 , 2024 2024 Citations: 22
Numerical investigation on MHD non-Newtonian pulsating Fe 3 O 4 -blood nanofluid flow through vertical channel with nonlinear thermal radiation, entropy … K Govindarajulu, A Subramanyam Reddy, D Rajkumar, T Thamizharasan, ... Numerical Heat Transfer, Part A: Applications 87 (1), 2314730 , 2026 2026 Citations: 15
Magnetohydrodynamic micropolar nanofluid flow with pulsation in a vertical permeable channel with Brownian motion, thermophoresis, and thermal radiation: a Buongiorno model … D Rajkumar, A Subramanyam Reddy, K Govindarajalu, K Vajravelu, ... Physica Scripta 100 (1), 015205 , 2025 2025 Citations: 14
Entropy generation on pulsatile hydromagnetic flow of Jeffrey Nanofluid in a porous channel with Brownian motion, thermophoresis, and heat source/sink using Cattaneo-Christov … T Thamizharasan, AS Reddy Indian Journal of Pure & Applied Physics (IJPAP) 60 (8) , 2022 2022 Citations: 6
Pulsating hydromagnetic flow and heat transfer of Jeffrey ferro-nanofluid in a porous channel: a dynamics of blood T Thamizharasan, AS Reddy The European Physical Journal Special Topics 231 (6), 1205-1214 , 2022 2022 Citations: 5
Pulsating hydromagnetic flow of Au-blood Jeffrey nanofluid in a channel with Joule heating and viscous dissipation T Thamizharasan, AS Reddy Nanoscience and Technology: An International Journal 13 (2) , 2022 2022 Citations: 4
Pulsatile flow of Jeffrey hybrid nanofluid in a vertical channel with entropy generation AS Reddy, T Thamizharasan Indian Journal of Chemical Technology (IJCT) 30 (4), 534-546 , 2023 2023 Citations: 2
Comparison of unsteady incompressible micropolar and nanofluid flow with heat transfer applications D Rajkumar, K Govindarajulu, T Thamizharasan, AS Reddy, ... Micro and Nanofluid Convection with Magnetic Field Effects for Heat and Mass … , 2022 2022
