Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Fluid Flow Characteristics of Al2O3 Nanoparticles Suspended in Water

알루미나 나노유체의 유동 특성에 관한 연구

  • 장석필 (한국항공대학교 항공우주 및 기계공학과) ;
  • 이지환 (한국항공대학교 항공우주 및 기계공학과)
  • Published : 2006.06.01
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Abstract

In this paper we report fluid flow characteristics of $Al_2O_3$ nanoparicles suspended in water. Especially, the effects of volume fraction with the range of 0.01% to 0.3% and tube diameter with $310{\mu}m$ to 1.735mm on the pressure drop and the effective viscosity of $Al_2O_3$ nanoparicles suspended in water are experimentally investigated. It is shown that the effective viscosity of water-based $Al_2O_3$ nanofluids with 0.1 Vol.% through a circular tube of 1.024mm diameter is increased to about 6%. The effective viscosity from experimental results is compared with that from Einstein model. With the comparison, we show that Einstein model for determining the effective viscosity of nanofluids is not applicable to water-based $Al_2O_3$ nanofluids.

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References

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