Turbulence structure in an annuli with strongly heated inner cylinder

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

研究成果: Article査読

6 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)137-144
ページ数8
ジャーナルExperiments in Fluids
27
2
DOI
出版ステータスPublished - 1999 1 1

ASJC Scopus subject areas

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

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