A generalized effective medium theory (EMT) is proposed to account for the fractal structure of the dispersed phase in a dispersing medium under the dilute limit. The thermal conductivity of nanofluids with fractal aggregates is studied using the proposed model. Fractal aggregates are considered as functionally graded spherical inclusions and its effective thermal conductivity is derived as a function of its fractal dimension. The results are studied for self-consistency and accuracy within the limitations of the analytical approximations used.
On the Effective Thermal Conductivity of Nanofluids With Fractal Aggregation
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received June 18, 2018; final manuscript received January 29, 2019; published online February 25, 2019. Assoc. Editor: Ravi Prasher.
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Subramaniam, C. G. (February 25, 2019). "On the Effective Thermal Conductivity of Nanofluids With Fractal Aggregation." ASME. J. Heat Transfer. April 2019; 141(4): 044501. doi: https://doi.org/10.1115/1.4042813
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