Heat and Mass Transfers on the Chemically Reactive Thermosolutal Convective Flow of Rivlin-Ericksen Fluid over a Porous Medium with Viscous Dissipation Effect
- سال انتشار: 1404
- محل انتشار: مجله مکانیک کاربردی محاسباتی، دوره: 56، شماره: 3
- کد COI اختصاصی: JR_JCAM-56-3_002
- زبان مقاله: انگلیسی
- تعداد مشاهده: 3
نویسندگان
Department of Mathematical & Physical Sciences, University of Nizwa, Oman
Department of Mathematical & Physical Sciences, University of Nizwa, Oman
Department of Mathematics, Babasaheb Bhimrao Ambedkar University, Lucknow ۲۲۶۰۲۵, India
Department of Applied Sciences, National Institute of Technology Goa, Goa, ۴۰۳۴۰۱, India
Department of Mathematics and Scientific Computing, Madan Mohan Malaviya University of Technology, Gorakhpur-۲۷۳۰۱۰, 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.کلیدواژه ها
Rivlin-Ericksen fluid, Thermosolutal convection, viscous dissipation, Porous media, Chemical reaction, Nonlinear stability analysisاطلاعات بیشتر در مورد COI
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