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On the thermal conductivity of nanofluids

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Abstract

The dependence of the effective thermal conductivity λ of nanofluids on the properties of dispersed nanoparticles has been studied by the molecular dynamics method. It is established that the thermal conductivity of a nanofluid always exceeds that of the carrier medium, the excess depending on the volume fraction of nanoparticles, their masses, and sizes. An increase in the nanoparticle mass at a constant size leads to a more pronounced increase in λ than does the growth in size at a constant mass, which implies that the density of dispersed nanoparticles is an important factor that determines the thermal conductivity of nanofluids.

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Authors and Affiliations

  1. Novosibirsk State University of Architecture and Civil Engineering, Novosibirsk, 630008, Russia

    V. Ya. Rudyak, A. A. Belkin & E. A. Tomilina

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  1. V. Ya. Rudyak
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  2. A. A. Belkin
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  3. E. A. Tomilina
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Correspondence to V. Ya. Rudyak.

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Original Russian Text © V.Ya. Rudyak, A.A. Belkin, E.A. Tomilina, 2010, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2010, Vol. 36, No. 14, pp. 49–54.

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Rudyak, V.Y., Belkin, A.A. & Tomilina, E.A. On the thermal conductivity of nanofluids. Tech. Phys. Lett. 36, 660–662 (2010). https://doi.org/10.1134/S1063785010070229

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  • DOI: https://doi.org/10.1134/S1063785010070229

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