Małgorzata Świerczek

Thank you for your answer.
Yet I have another problem and I hope you can help me again.
How in FEFLOW can I describe dimensions of the river (Cauchy type)? I mean, I think it is necessary to define ex. width and depth of the river as ther area ot exchange can be found in the formula Q = A*phi*(href-h).
In my thesis I compare results of simulations from FEFLOW and MODFLOW models, and I can see that there are big differences in results when it comes to the rivers - I think that the problem is that in FEFLOW I haven't defined the dimensions of the river...

Hi,
I am a student writing a Master thesis using Feflow. In the User Manual I have found an information that I can describe known hydraulic head in a distance from the model boundary using Cauchy type BC.
I guess I need to put in the hydraulic head as fluid transfer BC  but I know that in/out transfer rate is also necessary. Is there any formula describing that material property in that case? I know one for the rivers but I think the one for general head should consider the distance between the boundary and known hydraulic head.
Thank you in advance for any advices
Best regards from Cracow, Poland