Nanomaterial thermal performance within a pipe in presence of turbulator

2020 
In this context, multi tapes were utilized to enhance the productivity of the thermal unit which is filled with hybrid nano powder. Turbulent flow was analyzed by means of k-ɛ approach and FVM was utilized to tackle the governing equations and two formulas were offered for Nu and friction factor in outputs. Insert of swirl flow device makes the nanomaterial contact more to wall and pressure drop augments as well as Nusselt number. Pressure drop of N = 1 and 2.5 are found to increase about 34.49% and 32.47% with rise of Re. More resistance of nanomaterial due to higher revolution makes f to increase. As power of pump rises, the bulk velocity augments and it reduces the friction factor. When N augments from 1 to 2.5, the impact of Re on f reduces about 2.02%. As revolution enhances, faster movement of nanomaterial provides higher temperature gradient. At N = 2.5, Nu grows about 178.32% with rise of Re. Nu is experienced augmentation about 22.15% with rise of N when Re* = 5. Disruption of boundary layer with augment of N makes it thinner which results in greater Nu. Rise of Re can decline the impact of N on Nu while its influence on pressure drop augments.
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