Abstract
We analyzed the role of aggregation and interfacial thermal resistance on the effective thermal conductivity of nanofluids and nanocomposites. We found that the thermal conductivity of nanofluids and nanocomposites can be significantly enhanced by the aggregation of nanoparticles into clusters. The value of the thermal conductivity enhancement is determined by the cluster morphology, filler conductivity and interfacial thermal resistance. We also compared thermal conductivity enhancement due to aggregation with that associated with high-aspect ratio fillers, including fibers and plates.
Original language | English (US) |
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Pages (from-to) | 1431-1438 |
Number of pages | 8 |
Journal | International Journal of Heat and Mass Transfer |
Volume | 51 |
Issue number | 5-6 |
DOIs | |
State | Published - Mar 2008 |
Keywords
- Aggregation
- Homogenization model
- Interfacial thermal resistance
- Monte Carlo simulation
- Nanoparticles
- Thermal conductivity
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes