A Novel Equivalent Agglomeration Model for Heat Conduction Enhancement in Nanofluids

Scientific Reports
Jize SuiZhengdong Cheng

Abstract

We propose a multilevel equivalent agglomeration (MEA) model in which all particles in an irregular cluster are treated as a new particle with equivalent volume, the liquid molecules wrapping the cluster and in the gaps are considered to assemble on the surface of new particle as mixing nanolayer (MNL), the thermal conductivity in MNL is assumed to satisfy exponential distribution. Theoretical predictions for thermal conductivity enhancement are highly in agreement with the classical experimental data. Also, we first try to employ TEM information quantitatively to offer probable reference agglomeration ratio (not necessary a very precise value) to just test rational estimations range by present model. The comparison results indicate the satisfactory priori agglomeration ratio estimations range from renovated model.

References

Nov 5, 2004·Physical Review Letters·D Hemanth KumarSarit K Das
Mar 16, 2007·Physical Review Letters·Jacob EapenSidney Yip
Oct 13, 2007·Physical Review Letters·Jacob EapenRoberto Piazza
Feb 1, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Elena V TimofeevaJonathan V Selinger
May 24, 2008·Nature·Peter J LuDavid A Weitz
Jun 30, 2011·Nanoscale Research Letters·Clement Kleinstreuer, Yu Feng

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Citations

Mar 20, 2019·Scientific Reports·Matteo AlberghiniPietro Asinari

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Software Mentioned

MEA

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