article · Alexandria Engineering Journal
This research evaluates the heat transfer performance of three-dimensional rotating nanofluids moving over a stretching sheet in the presence of a magnetic field. It compares a single-particle nanofluid containing silver nanoparticles suspended in water against a hybrid nanofluid containing both silver and molybdenum disulfide nanoparticles. The governing nonlinear partial differential equations are converted into ordinary differential equations and solved numerically. The results reveal that fluid rotation enhances the rate of heat transfer, whereas an increasing stretching ratio parameter reduces it. Under magnetic influence, the hybrid silver and molybdenum disulfide water mixture demonstrates superior thermal transmission rates compared to the single-nanoparticle silver water fluid. These findings demonstrate that selecting appropriate combinations of composite nanoparticles can substantially improve the thermal transfer efficiency of rotating fluids under magnetic fields.
Cooling and heat exchange processes are critical in numerous engineering environments that use fluids under rotation or magnetic forces. Showing that hybrid nanoparticles outperform single-material alternatives offers a clear route to improving fluid thermal efficiency. This insight helps engineers understand how combining different nanomaterials and adjusting operational forces like rotation can better manage thermal dissipation in high-temperature industrial settings.
The findings are relevant to developers of advanced industrial cooling systems, heat exchangers, and thermal management technologies operating under magnetic or rotational conditions. However, the abstract presents purely numerical and mathematical simulations using standard computational methods, indicating that the research is at an early, theoretical stage. Real-world application would require physical formulation, experimental testing of nanoparticle stability, and validation within prototype engineering systems before commercial adoption is feasible.
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The foremost purpose of the current study is to examine the heat transmission characteristics of two-phase and hybrid phase rotating nanofluid flow in three dimension over the stretchable sheet in the applied magnetic field. The novelty of this work is that due to numerous applications it considers a new sort of nanofluid i.e. hybrid nanofluid. Water is utilized as base fluid while silver,Ag and molybdenum disulfide, MoS2 are used as nanoparticles in the current study. The nanofluid is rotating around the straight-up axis with a fixed angular speed ω∗. The resultant nonlinear partial differential equalities are transformed into ordinary differential equations via a resemblance transformation. The numerical results are obtained at Matlab by using the bvp4c technique. Rotation parameter increases while stretching ratio parameter decays the temperature transference rate. In this particular research, the temperature transmission rate of hybrid nanofluid Ag/MoS2-water was found higher than Ag-water nanofluid in the existence of the magnetic effect. The temperature transmission rates of hybrid nanofluid can be achieved higher by using a suitable combination of nanoparticles.
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DOI: 10.1016/j.aej.2022.03.069
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