Abstract
In this study, the heat transfer coefficient and pressure drop in a circular tube under turbulent flow condition are studied numerically. The Reynolds number range and nanoparticles concentration are in the range of (10000-30000) and 1% to 4% respectively. The governing equations have solved by the finite volume method adopting ANSYS software for simulation. The boundary conditions include: inlet velocity, outlet pressure and constant inlet temperature for hot and cold side and assuming SIMPLE algorithm. The results demonstrate that the AL2O3/Water nanofluid can enhance thermal properties of base fluid to 20% additionally, the heat transfer rate of nanofluid compared to the water is higher but friction factor slightly higher than that of pure water.
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