Rapheul Liu CUMT

Hi there, until now is there any new progress with this topic? I would be really interested in this coulpling

Hi,adacovsk,
Thanks for your comments!
Yes, first of all, I think the original data file is not so good to be interpolated.
But I checked other cross sectional views of the model, they are however quite normally interpolated and there is no such up and down or "sharp" curves as I showed in those pictures. The thickness of each layer is definitely different in my elevation data base. And stratums are growing thicker in the direction to the center of the domain. Bad results only show up at this very boundary part. I tried to add and delete some data at the boundary but it does not work.  Anyway, thanks for your help~

Hallo there,

I am modeling a multilayer aquifer system. Attached are the picutres of the interpolated elevation 3D model. But it does not appear like what I want.  I tried different interpolation methods. but the elevations on one of the boundaries still dont reach convergence. It is a syncline structure. Only the hilly boundary could not be interpolated well. other parts of the model are OK. and generally are also OK.  I wonder why top slice 1 and 2 has no problem while other slices have shock there. And besides, this only shows up at this very starting boundary. Other boundaries are also OK.
Additionally, anyone who could help to tell the differences and applicable conditions of each interpolation methods? I think my original elevation.dat file is also not so well compiled. 
Your help is appreciated.

Hi there,

Hope that this is not too basic for you.
I would like to output selected time steps data especially hydraulic heads of observation wells. I have done settingups before recording results file using "[b]user defined output times[/b]", (model time step length is 1d, altogether 365d),  but I would not use all of the time steps results. So l selected  36 steps within and defined them using the user defined output button.  The dac file does show the selected time steps, but the hydraulic heads charts below which I would export is still covering all time steps data. When I export, the excel is still continously from 0d to 365d. With too many observation wells, that is too plenty to handle. So I wonder whether there is a simple way to export selected time steps heads? I also tried right clicking hydraulic head in the data panel. but there are no such functions to export observations wells heads. However, feflow do have slice or selected nodes export options for each time step.

Your help is highly appreciated.
     

Hi, Catarina

I have similar questions with yours, For what I am modelling, there is also outcrop area of the bottom aquifers where confined changed to unconfined ,where my first unconfined aquifer also disappears, I wonder finally how you designed your model? Just by reducing the thickness of the layer 1 or 2 or? If so, how would you assign the precipitation recharge value (top/bottom inflow/outflow) to the outcrop area? Because in reality, the bottom aquifer will directly be recharged by rainfalls in the hilly area.
Is it possible if we establish a geological 3D model with other softwares and then plug into Feflow? For very complicated hydrogeological model? I wonder how Feflow solves these problems.

Thx a lot~

Thanks a lot ! Björn,

You gave me a very inspiring idea for the first question. I tried it on Feflow, yes, manually selection does work. But when I click [b]Selection by Map Polygon[/b], as I described, affter generation of supermesh, shape or distribution of the slices or layers below are exactly the same with the top slice that you splitted before mesh generation. Can I assign or change the 2nd or the 3rd...slice polygon distributions after mesh generation? I have different background maps for each slice with different polygons shapes(or layers). The first step is you need to design the supermesh with your map.  but it only allows you to do this with one map, when you add another map, you are not able to split it after you have done on the first map. Could you please tell me how to solve this? Though manually of course you could finish your different selections roughly, I wonder if it is possible when you have a more accurate selection accordingly.
For the other two questions, I am not so familiar with DF’s . It would be better if there are demo examples. 
Again, many thanks for your kind help!
Regards

rapheul




   

[quote author=Björn Kaiser link=topic=2296.msg5243#msg5243 date=1416424326]
Regarding your property zones, I suggest to make the element selections in a Slice View. You may either select manually or you may [b]Select by Map Polygon[/b] (Selection Toolbar).

After you selected the elements copy the selection to all other layers you wish to have the same zone by using the [b]Copy Selection to Slices/Layers[/b] (Selection Toolbar).

Repeat these steps for all other layers separately, which have different parameter zones.

Regarding the other two questions, you may represent open-pit mines by using inactive elements. Faults may be represented either by Discrete Feature (DF’s) or by a full discretization.
[/quote]

Dear there,

Hallo!
I am trying to set up a complex GW model with 6 aquifers. I would like to spilt each layer into different  subdomains. which means that, each aquifer has a unique parameter distribution. Then I could assign K or Ss, etc. accordingly. For example, slice 1 has 7 sub polygons to be assigned while slice 2 or 3.. has a totally different 10 or more polygons.And of course the shapes of those polygons will be different.  Could anybody here help to discribe how to realize that? I splited the top slice and then all the slices and layers below are the same distribution as the top one. but I would make them different.

There are another two additional questions. When dealing with the mining layers, how should I define those mining seams within a GW model? establish a single layer as aquitard or ? and what about fault? Has anyone done such modelling before?

Thanks a lot for your concerning!

rapheul