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Rheological behaviour of ethylene glycol based titania nanofluids
- Source :
-
Chemical Physics Letters . Aug2007, Vol. 444 Issue 4-6, p333-337. 5p. - Publication Year :
- 2007
-
Abstract
- Abstract: Ethylene glycol based nanofluids containing titania nanoparticles up to 8wt% show the Newtonian behaviour over a shear rate range of 0.5–104 s−1 at 293–333K. The shear viscosity of the nanofluids (η) depends strongly on temperature and particle concentration (φ). The normalized shear viscosity with respect to the based liquid viscosity (η 0) is found to be independent of temperature and can be given as η/η 0 −1=10.6φ +(10.6φ)2. Such rheological behaviour is explained by the aggregation mechanism. A combination of the aggregation mechanism with the Maxwell and Bruggeman models gives a good prediction of the effective thermal conductivity of the nanofluids. [Copyright &y& Elsevier]
- Subjects :
- *PHYSICS
*PHYSICAL sciences
*ANALYTICAL chemistry
*SCIENCE
Subjects
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 444
- Issue :
- 4-6
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 26249649
- Full Text :
- https://doi.org/10.1016/j.cplett.2007.07.046