Hydro-thermal phenomena of oil-multi-walled carbon nanotubes nano-fluid flow through a rectangular channel: impact of obstacles

Document Type : Article


Division of Mathematics, School of Advanced Sciences, Vellore Institute of Technology Chennai, Tamilnadu-600127, India


Thermo-hydraulic analysis of nano-fluid flow phenomena through rectangular channels has currently created much interest among researchers, and is being used in a variety of engineering applications. Hydrothermal properties of oil-MWCNT nano-fluid flow in a rectangular channel embedded with obstacles under uniform heat flux have been studied numerically with the variations of the values of Re and different forms of obstacle. The governing equations have been solved using the finite volume approach, and fluent software has been used to visualize the simulation results. The impact of various forms of obstacle (plane, trapezoidal, elliptical, and triangular), the volume fraction of nano-particle (D%), and Re on the different thermo-hydraulic fluid flow phenomena have been investigated numerically. It has been discovered that, in terms of the various characteristics of hydrothermal flow phenomena, plane obstacles are more pronounced, whereas elliptical obstacles are less pronounced. Moreover, it has been found that the vortex length reduces as the number of barriers put on the higher walls increases. The current study's findings will be extremely beneficial in a variety of engineering applications, including glass blowing, and continuous metal casting, especially in a variety of manufacturing processes like transpiration cooling, and laser pulse heating.


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