Chemically Reactive Micropolar Hybrid Nanofluid Flow over a Porous Surface in the Presence of an Inclined Magnetic Field and Radiation with Entropy Generation DOI Creative Commons

S. M. Sachhin,

Parashurampura Karibasavanaika Ankitha,

Gadhigeppa Myacher Sachin

и другие.

Physics, Год журнала: 2024, Номер 6(4), С. 1315 - 1344

Опубликована: Дек. 13, 2024

The present study investigates the entropy generation of chemically reactive micropolar hybrid nanoparticle motion with mass transfer. Magnetic oxide (Fe3O4) and copper (CuO) nanoparticles were mixed in water to form a nanofluid. governing equations for velocity, concentration, temperature are transformed into ordinary differential along boundary conditions. In fluid region, heat balance is kept conservative source/sink that relies on temperature. case radiation, there equation several characteristic coefficients transform hypergeometric Kummer’s by new variable. Furthermore, results current problem can be discussed implementing graphical representation different factors, namely Brinkman number, porosity parameter, magnetic field, thermal Schmidt transpiration. this presented through representations depict various factors influencing flow profiles physical characteristics. reveal an increase field leads reduction velocity production. rise stronger radiation whereas Nusselt number experiences decline. This has industrial applications technology manufacturing processes, including paper production, polymer extrusion, development specialized materials.

Язык: Английский

Impacts of nano-fluid on the dynamical and transitional behaviors of Rayleigh Bénard convection DOI

P. Deb,

G. C. Layek

Particulate Science And Technology, Год журнала: 2025, Номер unknown, С. 1 - 20

Опубликована: Март 25, 2025

This study investigates the non-linear dynamical aspects of nano-fluid convection heated from below, with a focus on influence nano-particle volume fraction (ϕ) stability, bifurcations, and heat transfer efficiency. Understanding these effects is crucial for optimizing thermal transport in engineering industrial applications. The novelty this work lies demonstrating how increasing ϕ delays convective instability, suppresses chaos, alters mode to conduction—an aspect not extensively explored previous studies. Single-phase water-Cu model considered under specific assumptions. A low-dimensional system coupled ordinary differential equations derived using truncated Fourier expansions. Stationary emerges through pitchfork bifurcation at critical Rayleigh number rPF=M2M3M4, followed by oscillatory via Hopf bifurcation, where M2, M3 M4 are thermo-physical parameters base fluid nano-particles. Homoclinic explosions preturbulent states identified as global transitions. Results indicate that fixed point, Nusselt (Nu) decreases 33.6% over 100 time units increases 0.1. Additionally, intermittent frequency variations induces several periodic solutions. Notably, beyond ϕ≥0.187, undergoes transition conduction-dominated steady state. establishes role modulating flow dynamics, providing insights into controlling instabilities. findings contribute advancing models enhancing management strategies nano-fluid-based systems.

Язык: Английский

Процитировано

1
Linear stability analysis of micropolar nanofluid flow across the accelerated surface with inclined magnetic field DOI
U. S. Mahabaleshwar,

S.M. Sachin,

A. B. Vishalakshi

и другие.

International Journal of Numerical Methods for Heat &amp Fluid Flow, Год журнала: 2024, Номер 34(9), С. 3515 - 3541

Опубликована: Июль 25, 2024

Purpose The purpose of this paper is to study the two-dimensional micropolar fluid flow with conjugate heat transfer and mass transpiration. considered nanofluid has graphene nanoparticles. Design/methodology/approach Governing nonlinear partial differential equations are converted ordinary by similarity transformation. Then, analyze flow, authors derive dual solutions problem. Biot number radiation effect included in energy equation. momentum equation was solved using boundary conditions, temperature hypergeometric series solutions. Nusselt numbers skin friction coefficients calculated as functions Reynolds number. Further, problem governed other parameters, namely, magnetic parameter, Prandtl Graphene nanofluids have shown promising thermal conductivity enhancements due high a wide range applications affecting layer serve coolants management systems electronics or fluids various industrial processes. Findings Results show that increasing field decreases increases radiation. source/sink parameter layer. Increasing volume fraction velocity profile temperature. Eringen flow. Applications found extrusion polymer sheets, films manufacturing plastic wires, fabrication fibers growth crystals, among others. Heat sources/sinks commonly used electronic devices generated high-power semiconductor such power transistors optoelectronics lasers light-emitting diodes medium, on spectroscopy properties materials also imaging capture display infrared emitted objects. Originality/value Micropolar across stretching/shrinking surfaces examined. effects An increase thickness. presented versus numbers. A solution obtained for shrinking surface.

Язык: Английский

Процитировано

7
Dynamics of sodium alginate-based ternary nanofluid flow over a stretching sheet with Al2O3, SiO2, and TiO2 nanoparticles DOI

H. D. Akshatha,

S. M. Sachhin,

U. S. Mahabaleshwar

и другие.

Multiscale and Multidisciplinary Modeling Experiments and Design, Год журнала: 2024, Номер 8(1)

Опубликована: Ноя. 8, 2024

Язык: Английский

Процитировано

4
Thermal dynamics and magnetohydrodynamics in ferrofluidic wall jet flow: Entropy generation in heat and mass transfer DOI Creative Commons

S. M. Sachhin,

U. S. Mahabaleshwar, N. Swaminathan

и другие.

Journal of Molecular Liquids, Год журнала: 2025, Номер unknown, С. 127449 - 127449

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Numerical simulation of heat transfer in williamson hybrid nanofluid $$({\varvec{M}}{\varvec{g}}{\varvec{O}}-{\varvec{A}}{\varvec{g}}/$$ water) flow with viscous dissipation effects DOI
Tasawar Abbas

Multiscale and Multidisciplinary Modeling Experiments and Design, Год журнала: 2025, Номер 8(6)

Опубликована: Май 9, 2025

Язык: Английский

Процитировано

0
MHD Casson flow across a stretched surface in a porous material: a numerical study DOI Creative Commons

Sadia Irshad,

Shah Jahan, José Machado

и другие.

Multiscale and Multidisciplinary Modeling Experiments and Design, Год журнала: 2024, Номер 8(1)

Опубликована: Ноя. 9, 2024

Abstract In this study, we examine the nature of magnetohydrodynamic (MHD) Casson flow fluid across a stretched surface in porous material. It studies how behaviour fluids is affected by number variables, including thermal radiation, chemical processes, Joule heating, and viscosity dissipation. The Keller box strategy, based on finite difference method (FDM), used to tackle complex numerical problem. Graphical representations are show effects different system parts. Comprehensive tables displaying transfer mass, heat, drag rates given for your convenience. study focuses particle motion transforms kinetic energy into heat. Increased Brownian leads higher temperature profile reduced concentration profile. Thicker profiles created increased Lewis ( $$Le$$ Le ) values reactions, resulting changes mass fluids. This in-depth investigation complicated interactions between various variables they influence fluid's under study.

Язык: Английский

Процитировано

1
Application of Artificial Intelligence Brain Structure-Based Paradigm to Predict the Slip Condition Impact on Magnetized Thermal Casson Viscoplastic Fluid Model Under Combined Temperature Dependent Viscosity and Thermal Conductivity DOI Creative Commons
Umar Farooq, Shan Ali Khan, Haihu Liu

и другие.

Case Studies in Thermal Engineering, Год журнала: 2024, Номер unknown, С. 105702 - 105702

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

1
Correction: Sachhin et al. Darcy–Brinkman Model for Ternary Dusty Nanofluid Flow across Stretching/Shrinking Surface with Suction/Injection. Fluids 2024, 9, 94 DOI Creative Commons

S. M. Sachhin,

U. S. Mahabaleshwar, D. Laroze

и другие.

Fluids, Год журнала: 2024, Номер 9(10), С. 241 - 241

Опубликована: Окт. 17, 2024

Figures: In Section 5, we aligned Figures 14–18 by consistently adding all the modelling parameters inside labels [...]

Язык: Английский

Процитировано

0
Chemically Reactive Micropolar Hybrid Nanofluid Flow over a Porous Surface in the Presence of an Inclined Magnetic Field and Radiation with Entropy Generation DOI Creative Commons

S. M. Sachhin,

Parashurampura Karibasavanaika Ankitha,

Gadhigeppa Myacher Sachin

и другие.

Physics, Год журнала: 2024, Номер 6(4), С. 1315 - 1344

Опубликована: Дек. 13, 2024

The present study investigates the entropy generation of chemically reactive micropolar hybrid nanoparticle motion with mass transfer. Magnetic oxide (Fe3O4) and copper (CuO) nanoparticles were mixed in water to form a nanofluid. governing equations for velocity, concentration, temperature are transformed into ordinary differential along boundary conditions. In fluid region, heat balance is kept conservative source/sink that relies on temperature. case radiation, there equation several characteristic coefficients transform hypergeometric Kummer’s by new variable. Furthermore, results current problem can be discussed implementing graphical representation different factors, namely Brinkman number, porosity parameter, magnetic field, thermal Schmidt transpiration. this presented through representations depict various factors influencing flow profiles physical characteristics. reveal an increase field leads reduction velocity production. rise stronger radiation whereas Nusselt number experiences decline. This has industrial applications technology manufacturing processes, including paper production, polymer extrusion, development specialized materials.

Язык: Английский

Процитировано

0