Simulate a spring with feflow

Hi, I wanted to know if anyone had any idea of how simulate the presence of a spring in a fractured aquifer; I have seen some papers that deal with springs such as wells: is that correct?

Thanks in advance for your reply.

Karanka

You can use a constant head boundary, with a constraint on it, so that it releases water only when the head is above ground surface.  If you know the spring is present, then its a good way to test the model. 

Hi udju, thank you for the answer. I have another question: if I consider the spring as a constant head boundary then how do to insert the constraint that you say? because the FEFLOW allows me to insert a constraint related to the min/max discharge value of the spring.

Thanks

Karanka

Use seepage face BC to represent springs (subset of the constant head BC)