Effect of Volume Fraction of Nanoparticles to the Convective Heat Transfer of Nanofluids

Abstract:

A numerical study on the convective heat transfer characteristics of Cu-water nanofluid under the laminar flow condition was performed. The results show that the convective heat transfer coefficient increases with the increase of the volume fraction of the nanoparticles and the Reynolds number. There is a significant difference between the numerical simulation result and the result calculated from the Shah equation in the entrance region, but a small difference in full development areas. The numerical results agree well with that obtained from the Xuan equation when the Reynolds number and the volume fraction of the nanoparticles are small, but the errors between them increase as the increase of the Reynolds number and the volume fraction of nanoparticles.

• Periodical: Key Engineering Materials (Volume 464)
• Pages: 528-531
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.464.528
• Online since: January 2011
• Authors: Zhi Yong Ling, Tao Zou, Jian Ning Ding, Guang Gui Cheng, Peng Fei Fu, Ti Feng Zhang, Ai Jun Zhu
• Keywords: Convective Heat Transfer, Laminar Flow, Nanofluid, Numerical Study

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