Penetrative ferroconvection in a heterogeneous Brinkman porous medium
| العنوان: | Penetrative ferroconvection in a heterogeneous Brinkman porous medium |
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| المؤلفون: | M. Ravisha, M. D. Alsulami, A. L. Mamatha, I. S. Shivakumara |
| المصدر: | International Journal of Modern Physics B. 37 |
| بيانات النشر: | World Scientific Pub Co Pte Ltd, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Statistical and Nonlinear Physics, Condensed Matter Physics |
| الوصف: | This study aims at finding the linear theory for the onset of ferromagnetic convective flow in a heterogeneous Brinkman porous layer with uniformly distributed internal heat source in the presence of vertical magnetic field. The resulting critical values are obtained numerically using the Galerkin technique for isothermal/insulated rigid-ferromagnetic boundaries for different forms of vertical heterogeneity permeability function [Formula: see text]. The results converge for six terms in the Galerkin expansion. The effect of types of [Formula: see text] and [Formula: see text] is found to either delay or speedup the flow of the ferrofluids. The stability of the system for the model [Formula: see text] is more stable and least stable for the model [Formula: see text] in the presence of [Formula: see text]. For different forms of [Formula: see text], the results show that the critical Rayleigh number increases with increasing [Formula: see text], while decreases with increasing [Formula: see text] and [Formula: see text]. The values of [Formula: see text] increase with [Formula: see text], but they decrease with increasing [Formula: see text] and [Formula: see text]. Besides, isothermal boundaries are found to be more stabilizing when compared to insulated boundaries. |
| تدمد: | 1793-6578 0217-9792 |
| DOI: | 10.1142/s0217979223500200 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4fa591d784feb79d3811b72394cc5176 https://doi.org/10.1142/s0217979223500200 |
| رقم الانضمام: | edsair.doi...........4fa591d784feb79d3811b72394cc5176 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17936578 02179792 |
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| DOI: | 10.1142/s0217979223500200 |