## Overview

 Solver Capabilities : – Two incompressible fluid– Non isothermal fluid– Immiscible fluid– Phase change (evaporation-condensation) between a fluid and its vapor– VOF (volume of fluid) phase-fraction based interface capturing approach– Lee phase change model Computational case : 2D flat plate test case from Vyskocil, L. Schmid, J., Macek J. CFD simulation of air-steam flow with condensation. Nuclear Engineering and Design, 2014.

The case is described in the following figure.

Wet steam flows through a flat plate. One side of the wall is being cooled thus condensate will appear on that side.

## Mesh

The 2-dimensional structured mesh is created using base mesh of CFDSOF.

## Fluid Properties

For this simulation, wet-steam of water is used at its saturation temperature of $363.15 \> K$ and its saturation pressure of $0.7 \> bar$. The properties are listed below

Liquid

• Kinematic viscosity, $\nu = 0.329 \times 10^{-6} \> m^{2}/s$
• Density, $\rho = 965.97 \> kg/m^{3}$
• Specific isobar heat capacity, $\text{Cp} = 4.204 \> KJ/kg K$
• Specific isochoric heat capacity, $\text{Cv} = 3.824 \> KJ/kg K$
• Thermal conductivity, $\alpha = 0.6748 \> W/m K$

Vapor

• Kinematic viscosity, $\nu = 28.217 \times 10-6 \> m^{2}/s$
• Density, $\rho = 0.42277 \> kg/m^{3}$
• Specific isobar heat capacity, $\text{Cp} = 2.041 \> KJ/kg K$
• Specific isochoric heat capacity, $\text{Cv} = 1.530 \> KJ/kg K$
• Thermal conductivity, $\alpha = 0.0240 \> W/m K$
• Latent heat of vaporization, $\text{H} = 2286.79 \> KJ/kg$

## Results

Temperature, velocity, and vapour mass fraction at several points is being monitored.