Model description

Model description

The model is a homogeneous, isotropic and confined aquifer. We are investigating the dispersion of the pollutant over time. The length of the model is L = 300 m, and it has a width of B = 100 m. The example model should also have the following properties:

 

Conductivity coefficients

kf = 5*10-4 m/s

KWER

Thickness

m = 18 m

MAEC

Porosity

ne = 0.2

PORO

Dispersivities

αL = 7 m

αT = 0.7 m

DISP

(sitr-parameters)

Initial potential heads

Hl = 36.0 m

Hr = 30.0 m

POTE

Pollutant concentration

c0 = 240 mg/m3

1KON

delay factor

R = 1

-

Decay factor

λ = 0

-

 

The pollutant input is permanent and constant. The location of the input is at the edge of the model (node 156), which is why a particularly fine discretisation was selected there.

The following image shows the model mesh with the pollutant source:

 


FE-Model with pollution source

 

Necessary iformation for the material transport