Presentation Information
[3E11]Numerical analysis for effects of steam mass fraction on wall condensation on a vertical flat plate
*Toshiya Takaki1, Michio Murase1, Koji Miyoshi1 (1. INSS)
Keywords:
Wall condensation,Non-condensable gas,Vertical flat plate,CFD,Steam mass fraction
The subject of this study was a correlation for wall condensation heat transfer which is used as boundary conditions on structure surfaces in computational fluid dynamics (CFD) analysis for thermal hydraulic behavior in a containment vessel (CV) during accident conditions. In this report, we carried out numerical analysis of wall condensation from a mixture of steam and air to a vertical plate, and we confirmed that as the steam mass fraction increases, the effect of natural convection increases and the mixed gas velocity, which changes from forced convection condensation to natural convection condensation, becomes higher.