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37
SETUP PARAMETERS
No. of Boxes:
Transit Time:
Duration of a run:
Duration of input pulse:
Input Elemental concentration:
Dispersivity:
Accuracy:
39
0.6 hour
8.86 hours
8.86 hours
1E-5 kg m-3
0.015
0.01
MAIN CHANNEL
Channel Width:
Path Length:
Aperture of Fracture:
Fracture Porosity:
0.3 m
1.8m
1E-4 m
0.99
SIDE MATRIX
Effective Diffusivity:
Matrix porosity:
Limit of Diffusion (Boxes):
1.0E-12
0.05
10
NAGRA NTB 00-02
SORPTION VALUES
No values were entered for sorption in the main channel.
The option for sorption was switched off.
ADDITIONAL OPTIONS
Rock Matrix Sorption
Rock Matrix Alpha for sorption:
giving retardation factor of:
Rock Matrix Beta for sorption:
0.0001
6.7
1.0
The above setup is stored in the file "santex6.sin", included on the installation disk.
When the above set of data was run, SANTA output the following results (Fig. 7.18) for the
development of contaminant concentration into the rock matrix at the different times shown. All
times are in seconds.