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Technical Brief

ON THE EFFECTIVE THERMAL CONDUCTIVITY OF NANOFLUIDS WITH FRACTAL AGGREGATION

[+] Author and Article Information
Chembai Ganesh Subramaniam

Institution- Department of Mechanical Engineering, SSN College of engineering, Anna University, Rajiv Gandhi Salai (OMR), Kalavakkam,Tamil Nadu, India - 603110
gsubramaniam15018@mech.ssn.edu.in

1Corresponding author.

ASME doi:10.1115/1.4042813 History: Received June 18, 2018; Revised January 29, 2019

Abstract

A generalized effective medium theory 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.

Copyright (c) 2019 by ASME
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