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Role of Brownian motion in the enhanced thermal conductivity of nanofluids

Jang, Seok Pil, Choi, Stephen U. S.·2004·Applied Physics Letters

Abstract

We have found that the Brownian motion of nanoparticles at the molecular and nanoscale level is a key mechanism governing the thermal behavior of nanoparticle–fluid suspensions (“nanofluids”). We have devised a theoretical model that accounts for the fundamental role of dynamic nanoparticles in nanofluids. The model not only captures the concentration and temperature-dependent conductivity, but also predicts strongly size-dependent conductivity. Furthermore, we have discovered a fundamental difference between solid/solid composites and solid/liquid suspensions in size-dependent conductivity. This understanding could lead to design of nanoengineered next-generation coolants with industrial and biomedical applications in high-heat-flux cooling.

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Metadata

Authors
Jang, S. P., & Choi, S. U. S.
Venue
Applied Physics Letters
Published
2004-05-24
Volume
84
Issue
21
Pages
4316-4318
ISSN
  • 0003-6951 (ISSN-L)
  • 1077-3118
OpenAlex
W1969596863
Cited by
1,596
References
0
FWCI
29.78
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Role of Brownian motion in the enhanced thermal conductivity of nanofluids. https://app.cochat.ai/papers/10.1063/1.1756684
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Jang, S. P., & Choi, S. U. S. (2004). Role of Brownian motion in the enhanced thermal conductivity of nanofluids. Applied Physics Letters. https://doi.org/10.1063/1.1756684

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