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Frictional performance of highly viscous fluid in minichannels.

Author(s) : WANG C. C., JENG Y. R., CHIEN J. J., et al.

Type of article: Article

Summary

This study experimentally examined the frictional characteristics inside minichannels with water and lubricant oil as the working fluids. Tests were performed in both round and rectangular configurations. The test results indicated a negligible influence of viscosity on the friction factor if the hydraulic diameter was greater than 1.0 mm. In addition, the measured data can be predicted well using the conventional correlation in both laminar and turbulent flow conditions. For a rectangular configuration with a gap distance of 0.1 mm, the measured friction factors for water can be roughly predicted by the conventional correlation. However, the measured friction factors for lubricant oil are slightly lower than those of the predicted value (10-30% lower). It is likely that this under prediction is attributable to the viscous heating.

Details

  • Original title: Frictional performance of highly viscous fluid in minichannels.
  • Record ID : 2005-0588
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 24 - n. 14-15
  • Publication date: 2004/10

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