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General aspects of heat transfer in fixed and fluidized beds percolated by a gas at Re ≫ 1

  • O. Molerus
  • K.-E. Wirth
Chapter
  • 289 Downloads
Part of the Powder Technology Series book series (POTS, volume 11)

Abstract

When the fluid density is significant in the fluid mechanics, i. e. with Reynolds numbers Re > 1, the flow pattern changes gradually with increasing Reynolds number. This change in the flow pattern is reflected by changes in the Reynolds number dependence of other variables, e. g. the single-sphere drag coefficient or the pipe friction factor. Clear relations between these integral data and the Reynolds number, however, are obtained only for geometrically similar configurations, e. g. smooth spheres or smooth straight pipes with circular cross-section.

Keywords

Heat Transfer Reynolds Number Void Fraction High Reynolds Number Euler Number 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • O. Molerus
    • 1
  • K.-E. Wirth
    • 1
  1. 1.Lehrstuhl für MechanischeVerfahrenstechnik der Universität Erlangen-NürnbergGermany

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