Application:
Known Issue ID:
7141
Problem description
In the above mentioned versions, the predefined unsaturated Van Genuchten parameters of the Hypres Topsoil Medium fine dataset for gl and gn are not correctly set internally.
This is only an issue for this predefined data set:
- Data set: Hypres
- Model: Van Genuchten
- Subsoil/Topsoil: Topsoil
- Type: Medium fine
For this case, the parameters gl and gn are incorrectly set to 0.5884 and 1.235 respectively. The correct values should be gl = -0.5884 and gn = 1.2539, as written in the section about the Groundwater tab sheet in the PLAXIS Reference Manual.
Solution
When using the dataset for Hypres (Van Genuchten) Topsoil Medium fine, user are advised to switch to:
- Data set: User-defined
- Model: Van Genuchten
- gn = 1.2539
- ga = 0.83 [1/m]
- gl = -0.5884
- Default permeability values: kx = ky = 0.0227 m/day
We are working on a solution for the incorrect values for the internal Van Genuchten parameters gl and gn.