Heat and Mass Transfers on the Chemically Reactive Thermosolutal Convective Flow of Rivlin-Ericksen Fluid over a Porous Medium with Viscous Dissipation Effect | ||
| Journal of Computational Applied Mechanics | ||
| دوره 56، شماره 3، پاییز 2025، صفحه 561-586 اصل مقاله (1.35 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jcamech.2025.396491.1498 | ||
| نویسندگان | ||
| A. M Mohamad1؛ Dhananjay Yadav* 1؛ Mukesh Kumar Awasthi2؛ Ravi Ragoju3؛ Mohammad Hassan4 | ||
| 1Department of Mathematical & Physical Sciences, University of Nizwa, Oman | ||
| 2Department of Mathematics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India | ||
| 3Department of Applied Sciences, National Institute of Technology Goa, Goa, 403401, India | ||
| 4Department of Mathematics and Scientific Computing, Madan Mohan Malaviya University of Technology, Gorakhpur-273010, UP, India | ||
| چکیده | ||
| Chemically reacting flows of non-Newtonian fluids through porous media have numerous medical and industrial applications, including targeted drug delivery, polymer processing, and extrusion operations. In these contexts, convective heat transfer is a critical mechanism that must be accurately predicted. This article analyzes the thermosolutal convection of a chemically reactive Rivlin-Ericksen fluid in a porous medium, accounting for viscous dissipation, using both linear and nonlinear stability approaches. The nonlinear analysis is performed using a truncated Fourier series method, while the linear stability is examined via the normal mode technique. It is found that oscillatory convection occurs only when the solutal Rayleigh-Darcy number is negative. The range of this number that allows oscillatory convection depends on several physical parameters. An increase in the Rivlin-Ericksen parameter, the modified heat capacity ratio, and the Péclet number reduces this range, whereas a higher Lewis number expands it. Moreover, the Lewis number, solutal Rayleigh-Darcy number, and Gebhart number accelerate the onset of convective waves, while the Rivlin-Ericksen parameter and the modified heat capacity ratio delay it. Additionally, both convective heat and mass transfer rates decrease with increasing Rivlin-Ericksen parameter and modified heat capacity ratio, but they increase with higher values of the thermal and solutal Rayleigh-Darcy numbers, the Lewis number, the chemical reaction parameter, the Péclet number, and the Gebhart number. | ||
| کلیدواژهها | ||
| Rivlin-Ericksen fluid؛ Thermosolutal convection؛ viscous dissipation؛ Porous media؛ Chemical reaction؛ Nonlinear stability analysis | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 510 تعداد دریافت فایل اصل مقاله: 368 |
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