Does pylith have boundary condition like winkler-foundation?
The cell of the model with viscoelastic material collapses in gravity field.
To prevent this, I used initial stress as in step 2 of the 7.17.5 chapter in manual. I want to observe the stress that occurs in my model due to the density difference.
However, when using the power-law viscosity, it seems that the desired viscosity was not applied due to the influence of the initial stress.
So, I wonder if there is a winkler_foundation boundary condition to prevent cell collapses.