Latest developments on the viscosity of nanofluids
Document Type
Article
Publication Date
1-1-2012
Abstract
The past decade has seen the rapid development of nanofluids science in many aspects. Number of research is conducted that is mostly focused on the thermal conductivity of these fluids. However, nanofluid viscosity also deserves the same attention as thermal conductivity. In this paper, different characteristics of viscosity of nanofluids including nanofluid preparation methods, temperature, particle size and shape, and volume fraction effects are thoroughly compiled and reviewed. Furthermore, a precise review on theoretical models/correlations of conventional models related to nanofluid viscosity is presented. The existing experimental results about the nanofluids viscosity show clearly that viscosity augmented accordingly with an increase of volume concentration and decreased with the temperature rise. However, there are some contradictory results on the effects of temperature on viscosity. Moreover, it is shown that particle size has some noteworthy effects over viscosity of nanofluids.
Keywords
Nanofluid, viscosity, temperature, particle size, volume concentration, thermal-conductivity enhancement, heat-transfer enhancement, multiwalled carbon nanotubes, nanoparticle-fluid mixture, water-based nanofluids, rheological behavior, ethylene-glycol, aqueous nanofluids, oxide nanoparticles, particle-size.
Divisions
fac_eng
Publication Title
International Journal of Heat and Mass Transfer
Volume
55
Issue
4
Publisher
Elsevier
Additional Information
895BC Times Cited:7 Cited References Count:135