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Turbulent transition and maintenance of turbulence: implication to heat transfer augmentation.

Author(s) : MIKIC B. B., VUJISIC L. B., KAPAT J.

Type of article: Article

Summary

The authors first argue that transition to turbulence should be interpreted solely in the context of the system's capacity to maintain turbulent motions. They then propose a model that links maintenance of turbulence to the intermittent transfer of vorticity from the wall region. They apply the findings to estimate heat transfer in the transition region. Experimental results show a strong cause-effect coherency between vorticity production and the system's capacity to maintain turbulence. It was also found that the heat transfer coefficient in the transition region is significantly increased when the transition Reynolds number is lowered.

Details

  • Original title: Turbulent transition and maintenance of turbulence: implication to heat transfer augmentation.
  • Record ID : 1995-0108
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 37
  • Publication date: 1994/03

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