Modeling the pump down of a reversibly adsorbed phase in complex vacuum systems

- Numerical approach addressing the pump down of reversibly adsorbed phase (e.g. water) in complex vacuum system.
- Mathematical model based on the view factor (or angular coefficients) methods coupled with the Langmuir adsorption desorption kinetic model.
- Model tested on a spherical vacuum system and results are compared to the ones obtained with the well-known Redhead model.
- Model applied to a more complex vacuum system in order to appreciate the effect of pressure inhomogeneity.