International Symposium on Multiphase Flow and Transport Phenomena
DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhen
ISBN Print: 1-56700-162-9
MODELLING THE EVOLUTION OF NEGATIVE PRESSURE MEASURED DURING FLASHING OF WATER
page 8
ABSTRACT
Flashing water is a fluid characterised by a relatively strong wave dispersion. As a consequence, a rapid depressurisation may cause that the measured pressure differs from the equilibrium pressure. The present paper explores the potential of Thermodynamics of Irreversible Processes in modelling the evolution of the pressure during flashing of water. Three different methods are applied - Classical Irreversible Thermodynamics, Extended Irreversible Thermodynamics, and Internal Variables Thermodynamics, in order to derive three different sets of models.