Thermal Performance of CuO-Water Nanofluid Flows Within a Wavy Channel Under the Influence of an External Magnetic Field
نویسندگان
1 Laboratory of Development in Mechanics and Materials, LDMM, Department of Mechanical Engineering, University of Djelfa, Djelfa, Algeria
2 Laboratory of Development in Mechanics and Materials, LDMM, Department of Mechanical Engineering, University of Djelfa, Djelfa, Algeria
3 Laboratory of Development in Mechanics and Materials, LDMM, Department of Mechanical Engineering, University of Djelfa, Djelfa, Algeria
4 Laboratory of Development in Mechanics and Materials, LDMM, Department of Mechanical Engineering, University of Djelfa, Djelfa, Algeria
doi
10.22075/jhmtr.2025.35581.1616چکیده
Simulation analysis to evaluate the impact of combined enhancement techniques on forced convection flow patterns and heat transfer is investigated in the present work. More precisely, a Newtonian nanofluidic flow flowing in complex sinusoidal geometry subjected to an external magnetic field is studied. This last is applied uniformly/non-uniformly to different values of the Hartmann number ranging from 0 to 50 in the fluid domain and oriented horizontally by; γ=0, γ= π/4 and γ=π/2. Hydrodynamic and thermal behavior changes 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, almost by 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.
