User's guide of Proceessing Modflow 5.0

268 Processing Modflow
-5 3
each well is estimated at about 7.9×10 m /s.
To calculate the duration until the steady-state is reached, the estimated pumping rate of
-5 3 7.9×10 m /s is specified to each well. A transient simulation with one stress period (subdivided
8
into 25 equal time steps) is carried out. The total simulation time is 1×10 seconds. The
7
calculated head-time curve (Fig. 6.38) shows that the steady-state is reached at t.4×10 s.
6.4.2 Estimation of Pumping Rates
Fig. 6.36 Plan view of the model
Fig. 6.37 Location of the cut-off wall and pumping wells
Fig. 6.38 Head versus time at the center of the contaminant area