Hello all!
Has anyone any experience with oscillating heads at the node of a well (4th BC)?
I’m handling a 3D modell with several slices and a river running through the modell domain. By running the transient modell the hydraulic head at the well oscillates. The aquifer consists of 3 layers (3/ 7/ 1 m thickness; similar conductivities). The well is applied as a multilayered well with Q=0 at the 2nd and Q=340 at the 3rd slice. I tried to avoid this error by adding 1 very thin layer above the 2nd and 1 under the 3rd slice, but it didn’t work.
By the way, the pumping rate is realised at every time step, as I checked with the budget analyzer.
What else could be the reason for this problem??
I appreciate your advices! Thanks!
Stefanie