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Artificial roughness effects on turbulent transfer coefficients in the entrance region of a circular tube.

Author(s) : MOTTAHED B., MOLKI M.

Type of article: Article

Summary

The artificial roughness was a two-dimensional rib roughness with pitch (P)-to-roughness element-height (e) between 3.33 and 80, and ratio of roughness-height to tube inner diameter (D) equal to 0.013 and 0.077. It was observed that for the best condition, highest heat transfer to lowest possible pressure loss, P/e is between 13.33 to 20 and e/D is between 0.077 to 0.013.

Details

  • Original title: Artificial roughness effects on turbulent transfer coefficients in the entrance region of a circular tube.
  • Record ID : 1997-0160
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 39 - n. 12
  • Publication date: 1996/08

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