RHEOLOGICAL BEHAVIOR OF NON-NEWTONIAN NANOFLUIDS

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.

کلیدواژه ها:

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