Turbulence structure in an annuli with strongly heated inner cylinder

I. N.G. Wardana, T. Ueda, S. Kurihara, M. Mizomoto

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Abstract

This structure of turbulent flow in an annulus with strong inner cylinder wall heating has been studied in terms of velocity and temperature with wall temperatures up to 707°C and a Reynolds number of 48,000. With increase in wall heating, the turbulence very close to the wall was suppressed due to an increase in the kinematic viscosity. In the inner region, the intermittent mixing became intensive and the turbulent intensity increased whereas, in the outer region, the turbulence was suppressed since intermittent mixing was no longer effective. The results show that the thermal structure can be considered in terms of a passive scalar for wall temperatures less then around 200°C, except in the leading region of the heated area.

Original languageEnglish
Pages (from-to)137-144
Number of pages8
JournalExperiments in Fluids
Volume27
Issue number2
DOIs
Publication statusPublished - 1999 Jan 1

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ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Cite this

Wardana, I. N. G., Ueda, T., Kurihara, S., & Mizomoto, M. (1999). Turbulence structure in an annuli with strongly heated inner cylinder. Experiments in Fluids, 27(2), 137-144. https://doi.org/10.1007/s003480050338