科研之友
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摘要
The present study aims to identify, effects due to convection heat transfer in a tube enclosure. Different Reynolds numbers for different types of convection flow of a water-Al2O3 nanofluid in a circular tube subjected to a constant wall temperature was numerically analyzed. The single-phase model was employed to simulate the nanofluid convection, taking into account constant therm ophysical properties. Simulations have been carried out for the volumetric fraction of alumina nanoparticles, phi = 0-4%. It is found that heat transfer flux for nanofluids is greater than that of the base liquid. Heat transfer enhancement is increasing with the particle volume concentration and Reynolds number.
- 出版日期2013
