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Single-Species Transport
• Select Parameters → Initial & Prescribed Hydraulic Heads → Reset
Matrix and set the value to 10 m and click ok. Then change the value
at all cells at the upstream boundary (column 1) to 18.33 m. Make
sure that you apply these values to all three layers. Leave the editor
and save your changes.
• Select Parameters → Horizontal Hydraulic Conductivity → Reset Matrix and set the value to 0.8640 m/day. Make sure that you apply these
values to all three layers. Leave the editor and save your changes.
• Select Parameters → Vertical Hydraulic Conductivity → Reset Matrix
and set the value to 0.00864 m/day. Make sure that you apply these
values to all three layers. Leave the editor and save your changes.
• Select Parameters → Effective Porosity → Reset Matrix and set the
value to 0.3. Make sure that you apply these values to all three layers.
Leave the editor and save your changes.
Table 1.1: Flow and solute transport parameters used for MT3DMS Exercise
1.
Parameter
Flow simulation type
Simulation time (days)
Model extent column direction (m)
Model extent row direction (m)
Model thickness (m)
Model top elevation (m)
Grid spacing ∆x (m)
Grid spacing ∆y (m)
Number of columns
Number of rows
Number of layers
Horizontal hydraulic conductivity (m/day)
Vertical hydraulic conductivity (m/day)
Porosity, θ
Piezometric head upstream boundary (m)
Piezometric head downstream boundary (m)
Longitudinal dispersivity, αL
Horizontal transverse dispersivity, αT H
Vertical transverse dispersivity, αT V
Effective diffusion coefficient, D!
Value
steady state
3650
250
155
6
6
5
5
50
31
3
0.864
0.00864
0.3
18.33
10
1.0 m
0.1 m
0.01 m
0
7