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A micro-convection model for thermal conductivity of nanofluids |
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| Authors: | Hrishikesh E Patel T Sundararajan T Pradeep A Dasgupta N Dasgupta Sarit K Das |
| Institution: | (1) Department of Mechanical Engineering, Indian Institute of Technology Madras, 600 036 Chennai, India;(2) Department of Chemistry and Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, 600 036 Chennai, India;(3) Department of Electrical Engineering, Indian Institute of Technology Madras, 600 036 Chennai, India |
| Abstract: | Increase in the specific surface area as well as Brownian motion are supposed to be the most significant reasons for the anomalous enhancement in thermal conductivity of nanofluids. This work presents a semi-empirical approach for the same by emphasizing the above two effects through micro-convection. A new way of modeling thermal conductivity of nanofluids has been explored which is found to agree excellently with a wide range of experimental data obtained by the present authors as well as the data published in literature |
| Keywords: | Micro-convection nanofluid thermal conductivity Brownian motion |
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