Hi everyone, I want to simulate a simple theoretical 2D vertical cross section in an unconfined coastal aquifer as a preparation to build a real aquifer situation. So, i just want to build this model and test the different effect of aquifer parameters on relation between sea and freshwater and distribution of hydraulic head. I already go through the FEflow manual and tutorial but I can not know how can i begin like how can i determine the dimensions of my problem and who can i assign the flow boundaries and flow initials. So, Please if anyone could tell me the steps to build such a simple case. Thank You