I'm starting to use the MODFLOW now, so I still do not understand how to calculate the conductance in a undergraund drain.
The drain has 5.8 m length (in the horizontal direction), under a sand layer of 0.7 m, and is the only water outlet.
The water is added by an arc (Specific Head), and then travel a horizontal distance of about 16.00, and vertical of 0.7 m, until exit in the drain.
The mesh I'm using is: x = 0.25; y = 0.25; z = 0.1. Who can help me?