Numerical simulation of heat transfer and fluid flow of nanofluid jet impingement on straight fn heat sink
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Abstract
The article presents a numerical investigation on heat transfer and fluid flow of the nanofluid jet impingement on an isothermal pin-fin heat sink surface using the single-phase model. The finite volume method was used for the solution of resulting governing equations. Al2O3 nanoparticles dispersed in water with the volumetric concentration of nanoparticles ranging between 0 and 4% were used as working fluid for simulating the heat transfer and fluid flow. The influences of the volumetric concentration of nanoparticles and Reynold number were examined and discussed in details. The results indicated that the volumetric concentration of nanoparticles and Reynold number enhance heat transfer where considering in terms of the stagnation, the local and the average Nusselt number. Moreover, two types of nanofluid as Al2O3-water nanofluid and TiO2-water nanofluid were compared. The Al2O3-water nanofluid enhanced heat transfer less than the TiO2-water nanofluid.
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