Thermal Instability of Ferromagnetic Couple Stress Micropolar Fluid with Rotation and Hall Current in Porous Medium
DOI:
https://doi.org/10.55544/jrasb.4.2.28Keywords:
Thermal instability, micropolar fluid, ferromagnetic effects, couple stress, Hall current, rotation, porous media, magnetohydrodynamics (MHD), stability analysis, convection patternsAbstract
The study investigates the thermal instability phenomena in a ferromagnetic couple stress micropolar fluid within a porous medium, incorporating the effects of rotation and Hall current. The governing equations are derived using the normal mode method to analyze the stability conditions influenced by couple stress forces, micropolarity, magnetic fields, Hall current, and porous media properties. Analytical calculations, numerical simulations, and graphical representations are used to illustrate the results.
Thermal instability is a crucial factor in various engineering and natural processes, including geothermal systems and lubrication mechanisms. The microstructural and rotational effects of micropolar fluids introduce unique behaviors that differ from classical Newtonian fluids. Additionally, the inclusion of ferromagnetic properties expands the scope of research applications in bio-fluid mechanics, industrial processing, and nuclear reactor technology. The presence of rotation and Hall currents further contributes to the complexity of magnetohydrodynamic (MHD) flows, which are essential in geophysical and astrophysical studies. This study aims to examine the combined effects of these factors on the onset of convection patterns in porous domains using mathematical modeling and stability analysis. The findings contribute to a deeper understanding of fluid motion and magnetic interactions in complex systems.
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Negi, A. S., Kumar, B., Kumar, A., & Rawat, S. K. (2025). Investigation of heat flux and heat source/sink effect on heat transfer ferrofluid (CoFe₂O₄-H₂O) flow in an induced magnetic field with porous medium within the horizontal. International Journal of..., Taylor & Francis.
Rafique, K., Alqahtani, A. M., Rehman, A., & ... (2025). Continuum flow model of MHD Casson nanofluid over a rotating disk with multiple slips. Differential Equations in..., Elsevier.
Lakshmi, B. N., Dharmaiah, G., Anjum, A., & Samdani, ... (2025). Darcy–Forchheimer hybrid nanofluid flow with magnetohydrodynamic and viscous dissipation effects past a permeable stretching sheet. Experiments and Design, Springer.
Sagadevan, P., Raju, U., Murugesan, M., & ... (2025). Chemical reactions with the Casson nanofluid flow by the bioconvective behavior of microorganisms over a spinning disc. Heliyon, Cell Press.
Hussain, Z., Ali, M., Zuev, S., Khan, W. A., & ... (2025). Numerical study of the three-dimensional interfacial instability of MHD between parallel plates. Heat..., Wiley Online Library.
Kumar, A., Sharma, B. K., Almohsen, B., Pérez, L. M., & ... (2025). Artificial neural network analysis of Jeffrey hybrid nanofluid with gyrotactic microorganisms for optimizing solar thermal collector efficiency. Scientific Reports, Nature.
Alharbi, A. F., Usman, M., Areshi, M., & Mahariq, I. (2025). Nanoconfined multiscale heat transfer analysis of hybrid nanofluid flow with magnetohydrodynamic effect and porous surface interaction. Multiscale and Multidisciplinary..., Springer.
Kamis, N. I., Jiann, L. Y., Shafie, S., & Rawi, N. A. (2025). Magnetoviscous effects in magnetized dual-ferrofluid flow over an extending slippery plate. Arabian Journal for Science and..., Springer.
Gaber, A., Mohamed, M., & Moatimid, G. (2025). Maxwell hybrid nanofluid (Cu-Al₂O₃/Water) and (CuO-Ag/Water) near a stagnation point above an extending sheet. European Journal of Pure and..., EJPAM.
Fatima, N., Ghodhbani, R., Khalid, N., Khan, M. I., & ... (2025). Machine learning-based prediction of heat transfer enhancement in Carreau fluids with impact of homogeneous and heterogeneous reactions. Experiments and Design, Springer.
National Institutes of Health. (n.d.). Thermal stress program. Retrieved from https://ors.od.nih.gov/sr/dohs/Documents/thermal-stress-program.pdf
B. Braun Medical Inc. (n.d.). Levetiracetam injection (LEVETIRACETAM). DailyMed. Retrieved from https://dailymed.nlm.nih.gov/dailymed/downloadpdffile.cfm?setId=ad32ec2f-b4e0-4811-8ea1-.
National Institutes of Health. (n.d.). Months after recovery, COVID-19 survivors often have persistent lung issues. Retrieved from https://www.nih.gov/months-after-recovery-covid-19-survivors-often-have-persistent-lung-.
National Institute of Neurological Disorders and Stroke. (n.d.). Frontotemporal dementia and other frontotemporal disorders. Retrieved from https://www.ninds.nih.gov/health-information/disorders/frontotemporal-dementia-and-other.
National Institutes of Health. (n.d.). Stress links poverty to inflammation and heart disease. Retrieved from https://www.nih.gov/news-events/nih-research-matters/stress-links-poverty-inflammation-h.
National Institutes of Health. (n.d.). Months after recovery, COVID-19 survivors often have persistent lung issues. Director’s Blog. Retrieved from https://directorsblog.nih.gov/2020/09/15/months-after-recovery-covid-19-survivors-often-.
Eunice Kennedy Shriver National Institute of Child Health and Human Development. (n.d.). How effective is vasectomy?. Retrieved from https://www.nichd.nih.gov/health/topics/vasectomy/conditioninfo/effective
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