A cell model approach for thermal conductivity of nanofluids

作者：Patel Hrishikesh E; Sundararajan T; Das Sarit Kumar^*

来源：Journal of Nanoparticle Research, 2008, 10(1): 87-97.

DOI：10.1007/s11051-007-9236-4

• nanofluid
• thermal conductivity
• Brownian motion
• micro-convection
• nanoparticles
• colloids

This work presents a cell model for predicting the thermal conductivity of nanofluids. Effects due to the high specific surface area of the mono-dispersed nanoparticles and the micro-convective heat transfer enhancement associated with the Brownian motion of particles are addressed in detail. Novelty of the paper lies in its prediction of the non-linear dependence of thermal conductivity of nanofluids on particle volume fraction at low particle concentrations. The model is found to correctly predict the trends observed in experimental data over a wide range of particle sizes, temperatures and particle concentrations.

• 出版日期2008-2