With Model Muse and MODFLOW6 DISV you can model faults and fractures having small cells close to the fracture alignment. In order to achieve small cell sizes close to the fracture aligment the normal MODFLO6 discretization schema (columns and rows) creates a series of unused/unwanted cells, but MODFLOW6 came with two new discretization options that allow us to have local refinements close to areas of interest decreasing the total amount of cells and thus the decreasing computational time. One of the new MODFLOW6 discretization types DISV is implemented on Model Muse.

This tutorial covers an applied case of regional groundwater modeling with a group of regional fractures that define areas of small cell size. The applied case covers the construction of a groundwater model with a refinement that ranges from 100m on the outer parts of the model to 15 meters in the area close to the faults.