You need to move your domain to the origin, which can be done by several ways.
This can cause many problems, including the problem with the FE-mesh accuracy. The problem with the FE-mesh: Your domain is defined in global coordinates (e.g. Just for the others: your question is actually regarding another topic in this forum – see
#PLAXIS 2D OUTPUT NOT WORKING UPDATE#
If it works, we could prepare an update (version 1.11) within 1-2 weeks.ģ/ The final solution of this problem will be in using double-precision for the FE-mesh generation calculations.
#PLAXIS 2D OUTPUT NOT WORKING HOW TO#
I will send you the finished mesh and some comments and hints today.Ģ/ I have an idea how to extend the precision by 1 order, which should be sufficient for your project. it will be replaced by some less-flat triangles in the final mesh), it can cause problems in the FE-mesh generation process.ġ/ Although it is not very easy to generate a FE-mesh for your domain, it is possible. Although this triangle is just temporary (i.e. The attached figure explains the situation – the circle inscribed in the yellow triangle has diameter D = 1cm. As you can see, your geometrical model is very close to this limit and this is also the reason why FE-mesh generation fails in your project. the maximum resolution ratio is 1/1000000. FE-mesh generation in HYDRUS is done in single precision, i.e. This means that the ratio Dmin/Dmax = 1/100000, where Dmax = diameter of the whole domain and Dmin = diameter of the smallest finite element (= diameter of the inscribed circle). The problem is that your domain is about 1km long and at the same time it contains some geometrical details with resolution about 1cm. But if we remove the mesh in these ‘old’ projects and try to generate again a mesh, we got the same error message. The strange thing is that similar projects were run a year ago by someone else without any problems. Also a simpler version of the project (without copies of the upper layer) could not help to solve the problem. Lowering the epsilon value (which is not recommended) gave already better results, but I still get the error message. I tried already to change the mesh-parameters like the stretching factor, the smoothing factor,… but with no result. At the river side, mesh refinement (S=0.1) was inserted at the boundary nodes and some extra nodes which are lying just near the boundary. For the rest, there are only nodes at the corners of the lower surface layer.
We also specified some additional nodes (1 m distance) at the side boundary lines in the upper layer (over a distance of 5 m). This line (upper surface layer) is copied 10 times and placed at 0.1 m distance of each other in order to specify the root distribution precisely over a distance of 1m in the upper layer. The upper surface layer follows the topography and contains a node every 5 m, exept at the side of the river, where we added nodes every meter over a distance of 100 m. The project concerns a 2D-transect of +/- 1000 m length and a depth of 120 m. 1 fails to satisfy the model precision criterion…) I always got the error message of internal error nr. I have some problems with the Fe-Mesh generation for my 2D-project (with a general domain definition).