User's guide of Proceessing Modflow 5.0

Processing Modflow 225
Run transient flow simulation
< To run the flow simulation
1. Select Models < MODFLOW < Run...
2. Click OK to accept the warning regarding the Effective Porosity in the Processing
Modlflow dialog box.
3. Click OK in the Run Modflow dialog box to generate the required data files and to run
MODFLOW, you will see a DOS window open and MODFLOW perform the iterations
required to complete the flow simulation.
4. Press any key to exit the DOS Window.
Produce output
Using the Presentation tool and the Results Extractor, you can create contour plots for the
water level at end of each time step. The water level at the end of the pumpin period (dry
season) corresponds to the heads in time step 12 of period 1 (Fig. 6.5). The water level at the
end of the recharge period (wet season) corresponds to the heads in time step 6 of period 2 (Fig.
6.6). Both figures use the contour interval of 0.5m. The minumum and maximum contour levels
are 12.5m and 19m respectively.
Animation
Now, we can create an animation sequence to show the development of the water level during
the wet and dry seasons.
< To create an animation sequence
1. Before creating an animation sequence, open the Enivironment Option dialog box to
make sure that the contours are set to visible and the contour levels are set properly.
2. Select File < Animation...
3. In the Animation dialog box, click the open file button .
A Save File dialog box appears. Select or specify a base filename for the animation files in
the dialog box, then click Open. Note that you cannot save the animation files in the same
folder as your model data. So, you need firstly to create a new folder or select an other
folder for the files.
4. Check Create New Frames, set Result Type to Hydraulic Head and set Display Time (s)
to 0.2. Like a movie, an animation sequence is based on lots of frames. Each frame is saved
6.1.1 Tutorial 1 - Unconfined Aquifer System with Recharge