Thermal Diffusion and Phase Change in a Heat Exchanger

Gloria Faccanoni (1) , Cedric Galusinski (1) , Louis Lamerand (1)

1 IMATH - Institut de Mathématiques de Toulon - EA 2134

This work is devoted to the numerical simulation of liquid-vapour flows with phase transition in nuclear framework. We investigate the lmnc model enriched with thermal diffusion, describing the evolution of the coolant within a core of a Pressurized Water Reactor. We focus on the influence of the thermal diffusion on a simple configuration for which some analytical computations can be done and we compare two different numerical approaches.

Mots clés: phase change; Stefan problem; nonlinear degenerate diffusion

Domaines: Analyse numérique [math.NA]; Equations aux dérivées partielles [math.AP]; Mécanique des fluides [physics.class-ph]

Gloria Faccanoni, Cedric Galusinski, Louis Lamerand. Thermal Diffusion and Phase Change in a Heat Exchanger. Topical Problems of Fluid Mechanics 2021, Feb 2021, Prague (virtual), Czech Republic. pp.56-64, ⟨10.14311/TPFM.2021.008⟩. ⟨hal-03216703⟩