Abstract
In this article, the simulation of nanofluid flow in pipe and the behavior of different variables on nanofluid flow are presented. Al2O3-water of volume fraction of Al2O3 2 to 8% was considered as nanofluid for simulation. For the simulation the single phase approach is used to calculate viscosity, temperature difference on wall, Reynolds number, thermal conductivity and temperature throughout the pipe. The MATLAB code is employed to solve the flow in pipe using finite difference method. Finally a conclusion is made based on simulation, how the temperature of the nanofluid flow changed with the radial direction and its axial direction is reported. How thermal conductivity, temperature difference on wall, Reynolds number and the viscosity of the nanofluid changed with the length of the pipe is explained based on the present simulation. Also effects of volume fraction of nanoparticle, radius of pipe, outside temperature of wall, Reynolds number and turbulent flow on the heat flow through pipe.
Highlights
Thermal properties of liquids play a decisive role in heating as well as cooling applications in industrial processes
Numerical study of forced convective heat transfer of nanofluid in laminar entrance region in a horizontal circular tube with constant wall temperature has been presented with using single phase model
Numerical results have clearly shown that the use of nanofluids can significantly increase heat transfer capabilities of nanofluids even for relatively small particle volume fractions
Summary
Thermal properties of liquids play a decisive role in heating as well as cooling applications in industrial processes. Nanofluids have novel properties that make them potentially useful in many applications in heat transfer, including microelectronics, fuel cells, pharmaceutical processes and hybrid-powered engines, engine cooling/vehicle thermal management, domestic refrigerator, chiller, heat exchanger, in grinding, machining and in boiler flue gas temperature reduction. They exhibit enhanced thermal conductivity and the convective heat transfer coefficient compared to the base fluid. The present work is executed on numerical simulation and its analysis of laminar forced convection of nanofluids in a circular tube by MATLAB 2013 with single phase approach
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