Evolution plotter
(formerly Pressure evolution plotter)
When using MolFlow's time-dependent mode, this plotter allows you to visualize the temporal evolution of facet quantities and formula values.
You can switch between the two modes with the Data source combo:
Facet mode
Allows to quickly add a plot for the currently selected facet in the model.
All facet quantities can be expressed by formulas, so this is a convenience function.
It allows to plot the following quantities of facets:
- MC hits - the actual test-particle rays that hit the facet
- MC hits equivalent - equivalent hits: in case of low-flux mode, this can be lower than the test-particle rays
- MC desorptions - test particles created on the facet
- MC abs. equivalent - test particles sticking (pumped) on the facet
- MC refl. equivalent - test particles leaving the facet after arriving from somewhere else
- Pressure
- Density
- Impingement rate - incident particles per second per m2
- Pumping (absorption) rate - absorbed particles per second per m2
- Desorption (outgassing) rate - created particles per second per m2
- Reflection (re-desorption) rate - particles that came from elsewhere and leave the surface again, per second per m2
- Cumulative quantites:
- Cumulative incident MC hits
- Cumulative desorbed MC hits
- Cumulative absorbed MC hits
- Cumulative reflected MC hits
- MC hit balance
- Particle balance (absolute / per m2)
You can choose from the modes above with the Physics mode combo, then click "Add to Y1" or "Add to Y2" to calculate the plot.
Cumulative quantites require manual calculation after the simulation has been running. A warning message tells you if they are outdated:
In this case choose "Calculate cumulative quantities" from the "Time" menu:
Formula mode
In this mode, the evolution of the formula's value over time is plotted.
First, you have to define the formula in the Formula Editor, then you can select it in the Data source combo:
Then click "Add to Y1" or "Add to Y2" to calculate the plot.
Views catalog
You can select the plotted views in this combobox, and either remove them from the plot, or select the facet they refer to in the model (if they are in facet mode).