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rising head while pumping (groundwater flow)

Dear all,

I built a 3D model with 7 layers. In addition, a well is installed in the middle of the model (delivery rate set via Polyline). While pumping I get a problem in the two upper layers. In this part the head starts pumping instead of sinking. There are no problems for the remaining layers.
Does anyone know where the problem could be?
I upload my data and in addition, a picture in which the distribution of the head for the individual centers of the respective layers are seeing.
Order of layers from top to bottom: KOH-0, KOH-1, Aq-1, KOH-2, Aq-2

Best regard,
Leandra

Here are the files

3D_Brunnen_oben_Qmax.bc (1.25 KB)

3D_Brunnen_oben_Qmax.gli (20.7 KB)

3D_Brunnen_oben_Qmax.ic (233 Bytes)

3D_Brunnen_oben_Qmax.mfp (180 Bytes)

3D_Brunnen_oben_Qmax.mmp (2.05 KB)

3D_Brunnen_oben_Qmax.num (320 Bytes)

3D_Brunnen_oben_Qmax.out (655 Bytes)

3D_Brunnen_oben_Qmax.pcs (83 Bytes)

3D_Brunnen_oben_Qmax.rfd (154 Bytes)

3D_Brunnen_oben_Qmax.st (1.17 KB)

3D_Brunnen_oben_Qmax.tim (1.01 KB)

Correction: In this part the head starts RISING instead of sinking

Dear Leandra,

can you please add the .asc files (reload data)?

Best,

Marc

···

Am Mittwoch, 16. Mai 2018 15:43:49 UTC+2 schrieb Leandra Drewes:

Here are the files

Oh, and also the .msh file is missing…

···

Am Freitag, 18. Mai 2018 16:51:11 UTC+2 schrieb Marc Walther:

Dear Leandra,

can you please add the .asc files (reload data)?

Best,

Marc

Am Mittwoch, 16. Mai 2018 15:43:49 UTC+2 schrieb Leandra Drewes:

Here are the files