Review Article
Critical Review on Nanofluids: Preparation, Characterization, and Applications
Table 5
Theoretical models for predicting the Nusselt number.
| | Author () | Correlation | Remarks |
| | Pak and Cho [74] | Nu = 0.021 Re0.8 Pr0.4 | For Al2O3 and TiO2 | | Duangthongsuk and Wongwises [78] | Nu = 0.074 Re0.707 Pr0.385 Ø0.074 | For TiO2 | | El Bécaye Maïga et al. [79] | Nu = 0.086 Re0.55 Pr0.5 | For Al2O3-water, Al2O3-EG, and constant heat flux | | Das et al. [80] | Nu = Re Pr0.4 | c & m depend on the volume fraction |
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: complex amplitude ratio.
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