Comment on “viscosity measurements of multi-walled carbon nanotubes-based high temperature nanofluids”
Résumé
In this short communication, we comment the recent results reported by Jo and Banerjee on the viscosity enhancement of multi-walled carbon nanotubes based molten salt nanofluids with volume fraction considering the effect of nanoparticle aggregation [Materials Letters 122 (2014) 212–215]. We explain that the model used to predict this enhancement is not reliable with the parameters considered and related to spherical particles. We suggest also the use of an appropriate model taking into account the aspect ratio of the particles.