Difference between LIQUID_FLOW and RICHARDS_FLOW

1

Hello everybody,

does somebody know the difference between LIQUID_FLOW and RICHRADS_FLOW?
As I found out both processes can be used for unsaturated zones. The primary variable is in both cases pressure.

Thank you!

2

Hi!
RichardsFlow uses the Richards equation whereas the LiquidFlow process does not have
saturation as secondary variable.
However, these are not the processes I use on a regular basis, so I might not be fully aware of their full feature list, but you’ll get more insight if you’ll take a look at the benchmark page as it contains the corresponding equations and input files.

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