Partial Migration Procedure for Data Prepared for VS2DT 2.5

For data originally prepared for VS2DT 2.5, the partial migration procedure requires:

• no change in the model data file
• creating a namelist file

The namelist file must contain the following 9 lines. The commonly used file names are indicated in parentheses.

1. The name of the model data file (vs2dt.dat).
2. The name of the main output file (vs2dt.out).
3. The name of the auxiliary output file containing maximum head change for each time step (file07.out).
4. The name of the auxiliary output file containing heads and concentrations at selected times (file08.out).
5. The name of the auxiliary output file containing selected fluid and solute balance components at each time step (file09.out)
6. The name of the auxiliary output file containing heads, concentrations, etc. for selected observation points at each time step (file11.out).
7. If initial pressure heads or moisture contents are specified in an array, then enter the name of the file containing this array. (If this array is in the model data file, repeat line 1 here.) If initial pressure heads or moisture contents are not specified in an array, then skip this line. (Do not enter a blank line.)
   
8. If initial concentrations are specified in an array, then enter the name of the file containing this array. (If this array is in the model data file, repeat line 1 here.) If initial concentrations are not specified in an array, then skip this line. (Do not enter a blank line.)
9. The line containing "# vs2dt2.5xn" (without quotes), where the letter 'x' is replaced by a single-character code that indicates the type of hydraulic characteristic function, and n is a single-integer code that indicates the type of adsorption or ion exchange.
   Replace 'x' by one of the following letters:
   
   b - Brooks Corey
   v - van Genuchten
   h - Haverkamp
   t - tabular data
   
   Replace 'n' by one of the following integers:
   
   1 - no adsorption, no ion exchange
   2 - by Langmuir isotherm
   3 - Freundlich isotherm
   4 - Monovalent-monovalent ion exchange
   5 - Monovalent-divalent ion exchange
   6 - Divalent-monovalent ion exchange
   7 - Divalent-divalent ion exchange
   
   For example, the line "# vs2dt2.5v3" indicates use of the van Genuchten hydraulic characteristic function, and adsorption described by the Freundlich isotherm.

Note: The namelist file must be placed in the same directory as the model data file.

To view sample files after full migration, please click the following:

• vs2dt1.dat (model data file, no change required)
• vs2dt.fil (namelist file)

Return to:

• Run a simulation using input data previously prepared for VS2DT 2.5