Posted Thu, 08 Oct 2015 18:55:53 GMT by S Heermann
When FEPest calls the FEFLOW kernel, are the process variables FEFLOW saved within FEFLOW after each model call, or do they remain constant during the parameter estimation process; i.e. do the initial conditions change or stay constant between Pest calls?
Posted Tue, 13 Oct 2015 18:03:23 GMT by adacovsk
The initial condition remains the same throughout: in unsat-sat flow conditions you'll notice this the most: you get parameters that are optimzed on your current head distribution. If you run a steady-state with a different head distribution with your calibrated parameters, you're going to get a worse calibration.

[quote author=S Heermann link=topic=2597.msg6142#msg6142 date=1444149169]
I recently used Python to extract parameters and create tables summarizing parameters for a range of "zones"-- it works great.  I would like to incorporate it into the parameter estimation process, but I haven't quite figured out how yet.  Any thoughts?

You would need to do is create element selections to define your parameter zones. Not sure if there's an easy way to do that. If you're trying to adjust parameters outside what FePEST has, here's a thread courtesy of Ludwig that has some groundwork on it:,2047.0.html
Not sure if this answers your question.

Hope this helps!


You must be signed in to post in this forum.