CHT'97 - Advances in Computational Heat Transfer. Proceedings of the International Symposium
DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhenCHT
ISBN Print: 978-1-56700-115-0
ISSN: 2578-5486
THE SPEED OF THE PHASE BOUNDARY BY MODEL KINETIC AND HYDRODYNAMIC EQUATIONS OF VAN DER WAALS FLUIDS
page 8
DOI: 10.1615/ICHMT.1997.IntSymLiqTwoPhaseFlowTranspPhenCHT.630
RESUMO
In this paper we study two types of problems. i) The derivation (at the formal level) of the hydrodynamic model containing dissipation and capillarity terms from a model kinetic equation, ii) The analysis of the 'normal growth' approximation both in the kinetic equations and in the hydrodynamic approximation. We show that the speed of the phase boundary is different when derived from hydrodynamic and kinetic equations. The reason of this difference is discussed.