A nanofluid is a fluid containing suspended solid particles, with sizes on the order of nanometers. Normally, nanofluids have higher thermal conductivities than their base fluids. Therefore, it is of interest to predict the effective thermal conductivity of such a nanofluid under different conditions, especially since only limited experimental data are available. We have developed a technique to compute the effective thermal conductivity of a nanofluid using Brownian dynamics simulation, which has the advantage of being computationally less expensive than molecular dynamics, and have coupled that with the equilibrium Green–Kubo method. By comparing the results of our calculation with the available experimental data, we show that our technique predicts the thermal conductivity of nanofluids to a good level of accuracy.
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1 June 2004
Letter|
May 25 2004
Brownian dynamics simulation to determine the effective thermal conductivity of nanofluids
P. Bhattacharya;
P. Bhattacharya
Arizona State University, Mechanical & Aerospace Engineering, Tempe, Arizona 85287-6106
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S. K. Saha;
S. K. Saha
Arizona State University, Mechanical & Aerospace Engineering, Tempe, Arizona 85287-6106
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A. Yadav;
A. Yadav
Arizona State University, Mechanical & Aerospace Engineering, Tempe, Arizona 85287-6106
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P. E. Phelan;
P. E. Phelan
Arizona State University, Mechanical & Aerospace Engineering, Tempe, Arizona 85287-6106
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R. S. Prasher
R. S. Prasher
Assembly Technology Development, Intel Corporation, 5000 West Chandler Boulevard, Chandler, Arizona 85226
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J. Appl. Phys. 95, 6492–6494 (2004)
Article history
Received:
August 18 2003
Accepted:
March 05 2004
Citation
P. Bhattacharya, S. K. Saha, A. Yadav, P. E. Phelan, R. S. Prasher; Brownian dynamics simulation to determine the effective thermal conductivity of nanofluids. J. Appl. Phys. 1 June 2004; 95 (11): 6492–6494. https://doi.org/10.1063/1.1736319
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