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Found 4 results

  1. Hello I tried to use the Ugrid on my 3-layer model before, but I had to switch to a 3D grid after realizing that it is not possible to create cross sections on a Ugrid. Now I'm facing a different issue. I created my cross sections but when the cells run dry they don't display in the cross section, and the layer displays with gaps. As soon as the cells flood the layer displays with no gaps. I understand that as soon as the cell runs dry the cell IBOUND is inactive, but when the cell floods the IBOUND status changes to Active. Is there a way to display the inactive cells on a cross section together with the water table? I just found the option of displaying them only on plain view but I need them displayed also in front and side views. I tried the cross sections option. I managed to display the full layers but the water table is not displayed under that setting. Thanks
  2. I have configured a MODFLOW model in GMS, using the conceptual model approach. During the configuration I chose to setup the model with a 3d grid, to get a uniform grid throughout the layers. However, for some unknown reason, the 1st layer has more cells than the underlying layers (as seen in the picture, showing the model in front-view). Is there anyway to fix this without having to setup an entire new grid, and how do I avoid this issue in the future?
  3. Hi, I have a set of measured Thiophenol concentration values. I can prepare a 3D plume of Thiophenol using 3D Geostatistics tool of GMS (in a 3D grid) in a new GMS project. However, I cannot make this 3D plume grid in an existing model set up that already has both modflow and MT3DMS models in the same region. When I prepare the plume as 3D Grid Data in the same model set up as in modflow and MT3DMS model, GMS requires to delete modflow and MT3DMS 3D grid. The reason why I want to prepare the 3D Thiophenol plume in the same set up as my modflow and MT3DMS model set is because I want to provide the above Thiophonol plume as the initial condition to the M3DMS model? How can I use “3D Data Set -> Grid…” option for this? Or, is my approach to this modeling initial conditions for MT3DMS correct? Please advise me? Any suggestion to resolve this situation is highly appreciated. Thank you, Lalith
  4. Hi, I have built 3D solids using borehole data of quite complex geology. It has so many layers of soil types. However, I do not feel that I should assign layers for each soil type because it will make too many layers to analyze. Should I?. Also, some soil layers do not run across the entire domain. I was thinking these solids should be mapped to a 3D grid with three or four layers with similar hydrogeological characteristics. Can someone please guide me how I should map these data to a 3D grid modflow grid with few layers? Am I going in the proper direction in modeling this? Thank you, Lalith
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