S Heermann

I would like to use spatial (vertical) head differences as an observation, but I am uncertain about the best way to go about this.  It seems that at least three approaches are available – PEST itself using the obs2obs.exe (and maybe more using PLPROC), an IFM plug-in, and a Python Script.  A Python script would probably be easiest for me to write,  but I am not sure whether it can be implemented or how it would be incorporated into the FEPEST's file structure.

So ..
1.  Could you comment on any benefits of each of the three approaches?
2.  Could you explain what can an IFM program can achieve that a Python script cannot (and any other relevant differences)?
3.  If, indeed my goal could be achieved using a Python script, could you provide a workflow for developing such a script and how to get the other PEST batch, input and control files to recognize and run the script.

Thanks

Stephen

Note:  I posted this yesterday in the FEPEST child board, but then noticed that no posts in that board had been responded to for almost a year.  Same for the Plug-in/Script Development and Plug-In/Scripting Sharing child boards.  What goes?

I would like to use spatial (vertical) head differences as an observation, but I am uncertain about the best way to go about this.  It seems that at least three approaches are available – PEST itself using the obs2obs.exe (and maybe more using PLPROC), an IFM plug-in, and a Python Script.  A Python script would probably be easiest for me to write,  but I am not sure whether it can be implemented or how it would be incorporated into the FEPEST's file structure.

So ..
1. Could you comment on any benefits of each of the three approaches?
2. Could you explain what can an IFM program can achieve that a Python script cannot (and any other relevant differences)?
3. If, indeed my goal could be achieved using a Python script, could you provide a workflow for developing such a script and how to get the other PEST batch, input and control files to recognize and run the script.
Thanks

Could DHI elaborate on how reverse particle tracking is implemented for transient flow simulations.  For example how does it incorporate the different velocity fields as they change during a simulation.  Are particle positions reset at each time step?

I seem to have solved my problem  - I was able to make it work by reducing the file to a single-band 8-bit geotiff. 
so I'll move on to a related question:  Can the aerial photo be moved down the bottom of the display-order list (on the View Components pane) so that other properties are drawn on top of the aerial?

I have not been able to successfully display a .tif formatted aerial photo into FEFLOW. 
For the case at hand, I am trying to add a three-band .tif file in UTM coordinates (it was generated using arcmap and is accompanied by a .twf world file and .tif.xml file).
I was able to import it successfully and add it to the View Components panel.  However its checkbox remains blank and cannot be toggled.

Stephen

Could you provide some insight on how best to model axisymmetrical flow to a well in which the water in the well and surrounding aquifer get drawn down to the pump intake elevation?

Is it possible to save formats for isolines and other process variables once set up in the properties panel?

How would I reset the license following a crash.  Currently when I try to reload a file I get the following error message: "The requested URL returned error 500.  No license found for module 'FEFLOW'" along with a pop-up of the license administrator.
Rebooting the PC works.  But perhaps there is a better way.

Does FEFLOW provide a switch to limit the maximum triangle size for the TRIANGLE meshing algorithm.  The TRIANGLE website (https://www.cs.cmu.edu/~quake/triangle.quality.html) describes an -a switch.  But I cannot find this in the FEFLOW grid generation menu.

Are exit probabilities in age computations available as observations.  If so, would it be reasonable to use FEPest to optimize a pump-and-treat system?