How to do a groundwater flow model with your company logo

By: Saul Montoya M.Sc. 

I wanted to do some “art” with numerical models. This is in fact a workaround on the use of MODFLOW with Model Muse to create artistic expressions based on hydraulic heads, particle tracking and soon with contaminant transport modeling.
I don’t know if this effort will turn people closer to numerical modeling, but I had much fun doing this. Next time I will put Scarlett Johansson or Robert Downey Jr on a pumping test model.

The final model product will be this representation of hydraulic heads: 

1. You need a raster version of your logo

A png, jpg or tiff file could work.

2. Open and georeference the image in QGIS. 

This step is critical, because you cannot vectorize the image unless you are working on a “true” coordinate system. For this example we have used WGS84.

3. Vectorize the image. 

You will get a shapefile to be inserted on Model Muse. The resulting shapefile has more than 2500 elements due to small polygons on the logo border. Dont worry about that for the moment.

4. Adding a special attribute to your logo.

You will need it when you want to split the model extension from the letters of your logo.

5. Extract the logo from the model extension.

You need to separate the letters from the box.

6. Create a new Model Muse project.

Open a new project in Model Muse and select the No Grid option.

7. Import the complete shapefile and use it to define the grid.

We recommend to use a fine grid otherwise your logo will be pixeled. We have around 240 columns and 140 rows.

8. Import the logo as another shapefile.

The logo will be defined as a low K zone (1e-7 m/s). We have to decrease the aquifer number to 1. After that set the Z formulas of both imported shapefiles.

9. A refinement along the letters.

We have to check “Use to set grid cell size” over the letters. The grid will be very fine in this step. It is better to hide the grid and plot the K values.

10. Insert regional flow.

Add two BC on the corners to simulate regional flow and run on MODFLOW NWT.

11. Style your model result representation.

After some artistic details we ended up with this. Isn’t that beautiful?

Saul Montoya

Saul Montoya es Ingeniero Civil graduado de la Pontificia Universidad Católica del Perú en Lima con estudios de postgrado en Manejo e Ingeniería de Recursos Hídricos (Programa WAREM) de la Universidad de Stuttgart con mención en Ingeniería de Aguas Subterráneas y Hidroinformática.

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