M Hojjat - ۱Department of Chemical Engineering, Isfahan University of Technology,
S . GH Etemad - ۲Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario K۱N ۶N۵, Canada
R Bagheri - ۱Department of Chemical Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶-۸۳۱۱۱, Iran
J Thibault - ۲Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario K۱N ۶N۵, Canada

Nanofluids are liquid suspensions containing nanoparticles. In the present investigation, different types of non-Newtonian nanofluids were prepared. γ-Al2O3, TiO2 and CuO nanoparticles were used while CMC aqueous solution was employed as a non- Newtonian basefluid. Rheological behavior of these nanofluids was measured over a wide range of nanoparticle concentration and temperature. Results show that the three nanofluids, like the basefluid, exhibit pseudoplastic (shear thinning) behavior and that rheological characteristics are affected by both temperature and particle concentration.

nanofluid, non-Newtonian, power law, rheological behavior, apparent viscosity