APPLICATION OF SIMILARITY PRINCIPLES FOR HEAT TRANSFER AND FLUID-DYNAMICS TO DIFFERENT FLUIDS AT SUPERCRITICAL PRESSURE
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16


Presented at:
The 5th International Symposium on SuperCritical Water-cooled Reactors
2011 March 13-16
Location:
Vancouver,Canada
Session Title:
Instability Analyses (I)

Authors:
Walter Ambrosini (Università di Pisa)
Mattia De Rosa (Università di Pisa)
  

Abstract

The paper reports on the results of a comparison between different fluids at supercritical pressures, basing on similarity principles recently proposed to establish a rationale for fluid-to-fluid comparison. The dimensionless groups proposed in past work for the analysis of flow stability in heated channels with fluids at supercritical pressure were recently extended to general heat transfer conditions, in order to scale also thermo-physical property groups having relevance for heat transfer. The capabilities of this new rationale are investigated by the use of a CFD code considering different fluids and drawing conclusions about its suitability.

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