Статья

Model for Heat Conduction in Nanofluids

Dinesh KumarDepartment of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600 036, IndiaHrishikesh PatelDepartment of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600 036, IndiaVikas KumarDepartment of Chemistry and Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, Chennai 600 036, IndiaT. SundararajanDepartment of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600 036, IndiaThalappil PradeepDepartment of Chemistry and Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, Chennai 600 036, IndiaSarit K. DasDepartment of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600 036, India

2004en

ABI

Аннотация

A comprehensive model has been proposed to account for the large enhancement of thermal conductivity in nanofluids and its strong temperature dependence, which the classical Maxwellian theory has been unable to explain. The dependence of thermal conductivity on particle size, concentration, and temperature has been taken care of simultaneously in our treatment. While the geometrical effect of an increase in surface area with a decrease in particle size, rationalized using a stationary particle model, accounts for the conductivity enhancement, a moving particle model developed from the Stokes-Einstein formula explains the temperature effect. Predictions from the combined model agree with the experimentally observed values of conductivity enhancement of nanofluids.

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Идентификаторы

DOI: 10.1103/physrevlett.93.144301

Цитирования и источники

Цитирований: 2Использованных источников: 0

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