Denim Umeshkumar Anajwala

In FEFLOW itself, you can consider the river as a boundary condition. This means that you'd have to know the river water level and river bed conductance. If you need to simulate both hydrodynamics in the river and groundwater flow with their interaction, you can link FEFLOW to MIKE11 via the plug-in IfmMIKE11.

Alternatively, you might want to check out chapter 8 in the FEFLOW White Papers, Volume I.

No, that's currently not possible. User Data distributions are always constant in time.

The reason for the temperature rise is numerical oscillation due to a steep temperature gradient combined with a relatively large element size of 30 m. The ideal solution is a much finer vertical discretization below the injection well.

Hi Stefano,

There is no limit on the maximum rate for a well, at least not technically. When you put unrealistic high amounts, you're likely to face stability issues in the simulation.

Bastian

You're right, Jegs.

Pls. have a look at the description of the Rate Budget and Period Budget panels in the Help system. You'll find corresponding information there.

Stefano,
the head at the well node highly depends on mesh discretization. The result will only be realistic if the element size corresponds to an 'ideal element size'. FEFLOW can show the latter for multi-layer wells (FEFLOW 6.1). If the mesh is coarser than that, you will obtain a higher head than expected (and realistic), if the mesh is finer you'll get a lower head. So if your mesh does not consider the 'ideal element size' it might be better to use an observation point that is a bit away from the well.
Peter

I'd use a Mass-flux BC on top of the model in conjuction with the 'divergence' form of the transport equation.

When cell sizes are below the ideal radius, the drawdown shown in the model well will be larger than realistic (pumping well). If cellsizes are larger than the ideal radius, calculated heads will be higher than realistic.