Rheology of Nanofluids: A Review
Liang Wang, Haisheng Chen and Sanjeeva Witharana
Affiliation: Institute of Engineering Thermophysics, Chinese Academy of Science, Beijing 100190, China.
Keywords: Flow, nanofluids, review, rheology, viscosity.
The rheological behavior of nanofluids published in recent research papers and the relevant patents are reviewed
in this article. Effects of various factors such as preparation, nanoparticle and base fluid properties, concentration,
temperature, surface charge, and aggregation etc. on the rheological behavior of nanofluids are discussed. Brownian motion
and nanoparticle aggregation are found to be the major mechanisms for rheological properties of nanofluids compared
to the micro-sized suspensions. The importance of microstructure as means of understanding the mechanisms behind the
rheological and heat transfer behavior of nanofluids is also disclosed.
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