Details

Autor(en) / Beteiligte

• Minea, Alina Adriana

Titel

Simulation of Nanofluids Turbulent Forced Convection at High Reynolds Number: A Comparison Study of Thermophysical Properties Influence on Heat Transfer Enhancement

Ist Teil von

• Flow, turbulence and combustion, 2015-04, Vol.94 (3), p.555-575

Ort / Verlag

Dordrecht: Springer Netherlands

Erscheinungsjahr

2015

Quelle

SpringerLink E-Journals

Beschreibungen/Notizen

• After many years of studying of nanofluids development, their thermophysical properties are not yet known precisely and the judgment of their true potential is difficult. This fact was demonstrated by studying numerically forced convection heat transfer at high Re of a nanofluid consisting of water and Al 2 O 3 in horizontal tubes. Five different models from the literature are used to express the thermophysical properties in terms of particle loading and they led to different results in heat transfer enhancement. In particular, the heat transfer coefficient of water-based Al 2 O 3 nanofluids is increased by 2.33–26.45 % under fixed high Reynolds number compared with that of pure water. As a conclusion, the effect of uncertainties in adopting nanofluids properties was observed.