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iMOD User Manual version 5.2 (html)


10.10Data Set 9: Boundary file

Data Set 9

BNDFILE or XMIN,YMIN,XMAX,YMAX

XMIN,YMIN, XMAX,YMAX

Enter the coordinates of the entire model at maximum extension (area of regional interest). Beyond these limits the model will give an error and below these limits constant head boundary conditions will be applied, automatically whenever the area of interest is smaller.

BNDFILE

IDF file that represents the entire model at maximum extension (area of regional interest). This file will be used differently for the following flag values for NSCL (see Data Set 2):

NSCL=0

This file will be used to determine whether it extends the given area of local interest defined in Data Set 6. If so the area of local interest will be trimmed to fit the area of regional interest. On the other hand, whenever the area of local interest is smaller (in many cases), the boundary nodes along the cutting edges are transformed into “open”-boundaries. The starting heads (SHD) or constant-head (CHD) values fixate these boundaries.

NSCL>0

The network as described in the given IDF file is used for the modeling simulation. Any network schematization is accepted as long as it will not exceed the maximum extension of the area of regional interest.