Before creating MODFLOW files

Define the root file name for these MODFLOW files

Model->MODFLOW->Packages.

Change the root file name to “T2”
Change layers 2 and 3 from unconfined, type 3, to confined, type 0, layers.

Choose Model->MODFLOW->BCF Package

Change the layer definitions

Click OK when you are done.
Save your work

First define the Paths you will use
Choose Model->Paths to Models...
At the bottom, change the working directory to C:\temp\yourname\MODFLOW\exer\gwvtut
Paths to the executables should be correct, but this is a good place to check if a model is not running
OK

Choose File->Save As

Use the file name T2.GWV

Create data files for a MODFLOW simulation
Click the calculator button on the toolbar, OK

View the error file

Correct any errors, repeating the calculate process (note we expect the grid size transition rule to be broken)

If your model does not converge, Select Model->MODFLOW->OutputControl

Uncheck the "disable printing of head/drawdown to output file"

Rerun and view the convergence conditions in the output file (t2.out) by dragging it from your model directory into textpad

Select Model->MODFLOW->SolverPackage

Increase the maximum number of iterations to 500

Repeat creation of MODFLOW files and execution until convergence with reasonable mass balance is concerned

If MODFLOW win32 (the version of MODFLOW that comes with GWV) does not run, GWV could not find the executable

Select Model->PathtoModels

BROWSE for MODFLOW and find the file called mfwin32.dll or if you want to use an unrelated executable locate that

Otherwise check that the files are in the proper directory or in our PATH

When MODFLOW is done Choose YES to post-process the results

Specify what model results to analyze including a check next to “CBC Files” to view the mass balance

Click OK
HEAD CONTOURS WILL APPEAR

Go "BACK" and continue with the post processing step.