A cuboidal unit cell filled with non-wetting fluid is shown in the next figure using the full screen 3D cell viewer. The unit cell viewer below shows the non-wetting fluid intrusion with mercury in grey and the unfilled pores and throats in yellow to clearly differentiate between the empty and full void features.

 

PoreXpert cell view tutorial mercury

 

Non-wetting fluid percolation

1.Tick the percolation box on the fluid uptake screen
2.The software will ask do you want to use the default intrusion fluid for percolation, select yes.
3.Choose the number of intermediate structures in the range 10 - 40.
a.Select whether to add the number of intermediate structures to the operation list, or add the operations to a different data file
b.if saving to a different data file choose a name for the file
4.Change the position of the super source in the advanced menu
5.Choose the non-wetting fluid from the list of fluids in the materials database.

 

Optional steps

Change the skeletal material in the advanced menu.
Turn on the preview screen (Previewing the structure slows down the non-wetting simulation as the user interface needs to create a visualisation)
Select whether the preview screen refreshes the unit cell at the flags (Updating the structure slows down the non-wetting simulation as the user interface needs to create a visualisation)