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Thermal performance of CuO-water nanofluid flows within a wavy channel under the influence of an external magnetic field | ||
| Journal of Heat and Mass Transfer Research | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 11 خرداد 1404 | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2025.35581.1616 | ||
| نویسندگان | ||
| Amar Nekbil؛ Ahmed Lamine BOUKHALKHAL* ؛ Lakhdar Aidaoui؛ Yahia Lasbet | ||
| Laboratory of Development in Mechanics and Materials, LDMM, Department of Mechanical Engineering, University of Djelfa, Djelfa, Algeria | ||
| تاریخ دریافت: 18 مهر 1403، تاریخ بازنگری: 07 فروردین 1404، تاریخ پذیرش: 11 خرداد 1404 | ||
| چکیده | ||
| Simulation analysis to evaluate the impact of combined enhancement techniques on forced convection flow pattern and heat transfer is investigated in the present work. More precisely, a Newtonian nanofluidic flow flowing in a complex sinusoidal geometry subjected to an external magnetic field is studied. This last, is applied uniformly/non-uniformly for different values of the Hartmann number ranging from 0 to 50 on the fluid domain and oriented with the horizontal by; γ=0, γ= π/4 and γ=π/2. The changes in hydrodynamic and thermal behavior are examined in terms of secondary flow intensity, velocity profile, shear and rotation rates, the temperature profile pattern and the non-dimensional Nusselt number. Findings illustrate that the improvement in parietal heat transfer varies depending on the applied procedure, where the percentage of increase varies from 1% to 14% depending on each case. Specifically, the full application of the magnetic field at an angle of 𝜋/2 improves the average Nusselt number from 10.5 to 12 with almost 14% compared to the no-magnetic-field scenario. Also, applying a partial magnetic field in the 𝜋/4 and 𝜋/2 orientations leads to an improvement in heat exchange of 3%, 5%, 7%, and 10% compared to the base case. | ||
| کلیدواژه‌ها | ||
| Heat exchange؛ Laminar flow؛ MHD؛ Nano-fluid؛ Wavy channel | ||
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