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Comparative Numerical Analysis of Rotating Flow of a Stretching Sheet with Hall Current, Thermal Diffusion and Heat Source for an MHD Base Fluid, Casson Nanofluid, and Hybrid Nanofluid | ||
| Computational Methods for Differential Equations | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 18 شهریور 1404 اصل مقاله (2.14 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22034/cmde.2025.62206.2727 | ||
| نویسندگان | ||
| Mohana Ramana Ravuri1؛ Maheswari Chundru1؛ Raghunath Kodi* 2؛ Sridevi Dandu3 | ||
| 1Department of Mathematics, Narasaraopeta Engineering College (Autonomous), Narasaraopet-522601, Andhra Pradesh, India. | ||
| 2Department of Humanities and Sciences, St. Johns College of Engineering and Technology (Autonomous), Yemmiganur-518360, Andhra Pradesh, India. | ||
| 3Department of Engineering Mathematics & Humanities, S.R.K.R. Engineering College, Bhimavaram, West Godavari District, Andhra Pradesh, India. | ||
| چکیده | ||
| This work examines the heat and mass transfer characteristics of MHD rotating Fe3O4-Al2O3/H2O hybrid nanofluid flow over a three-dimensional linear stretching surface. A comparative analysis has been carried out among the base fluid H2O, Al2O3-H2O nanofluid and Fe3O4-Al2O3/H2O hybrid nanofluid concerning velocity, temperature and concentration distributions, influenced by various parameters, including thermophoresis(0.1≤Nt≤3), Brownian motion(0.2≤Nb≤3), Hall current(0≤m≤2), temperature ratio parameter(1≤θ_w≤2), magnetic parameter(0≤M≤1), rotation parameter(0≤λ≤1), thermal radiation(0.5≤Rd≤1.5). The system of nonlinear ordinary differential equations (ODEs) is derived from the set of nonlinear partial differential equations (PDEs) by employing similarity adaptations. Numerical solutions are obtained using the BVP-5C method implemented in MATLAB with a shooting approach. Rising the thermophoresis parameter leads to heightened temperature and concentration profiles. Similarly, as Brownian motion values escalate, the temperature profile elevates while the concentration distribution reduces. Additionally, an increase in both the Hall parameter and the temperature ratio parameter correlates with a rise in the temperature profile. The local Nusselt number demonstrates a decline as the thermophoresis parameter and Brownian motion values increase. Moreover, the Sherwood number tends to ascend with higher Brownian motion values, while it tends to decrease with increasing thermophoresis parameter values. The temperature distribution of the hybrid nanofluid shows a notable increase compared to both the nanofluid and the base fluid under the influence of thermophoresis and Brownian motion characteristics. Conversely, the concentration gradient of the base fluid exceeds that of both the nanoliquid and hybrid nanoliquid when considering the same parameters. In accordance with Karl Pearson's approach, the coefficient of correlation reveals a perfect positive correlation, close to 1, between the current and previous outcomes of the Nusselt number. | ||
| کلیدواژهها | ||
| 3D MHD Hybrid nanofluid؛ Stretching sheet؛ Thermophoresis؛ Brownian motion؛ Hall current | ||
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