Measurement and Correlation of the Viscosity of Water-Based Al₂O₃ and TiO₂ Nanofluids in High Temperatures and Comparisons with Literature Reports

Abstract

In this article, the viscosity of two common nanofluids including Al₂O₃/water and TiO₂/water is measured at high temperatures, and high concentrations of the nanofluids. The range of temperature is 15–60°C where the volume fraction of nanoparticles varies from 1 to 8%. Next, comparisons have been done with the most well-known theoretical and experimental reports in the literature. Finally, using the experimental data, a helpful correlation is presented.

Keywords:

• Correlation
• high temperature
• nanofluid
• viscosity

Acknowledgments

The present study was supported by the Thailand Research Fund (TRF), the National Science and Technology Development Agency, the Office of the Higher Education Commission, and the National Research University Project whose guidance and assistance are gratefully acknowledged. A. S. Dalkilic and O. Mahian thank the Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi and Professor Somchai Wongwises for providing them fellowships for doing their research in Thailand.