Hello everyone, I’m rocky into mfix and I’m trying to generate the mesh to my system with a figure stl that was imported, but somehow the mesh is made inside the figure (where I need it ) and outside as well (I don’t need it there). I tried changing the normals directions but it doesn’t work. And also, the other time the program made a mesh into the walls of the system which does not sense in my study. Anyone knows how to fix it? or should I build a simplified figure with the tools of mfix? Below there are the imahes of how is the mesh
Hi Paula, please upload your files if you need help. Easiest way is “Submit bug report” from the main menu which will create a ZIP file you can upload here.
Hi, here you can find the zip file
I don’t fully understand your geometry and what is the role of the cone (there seem to be a small gap between the cone and the stl file. We typically do not include the wall thickness in the stl file, unless both internal and external flow is modeled. There will be fluid cells in the regions where the stl normals point to. Here the stl file has a small wall thickness with normals pointing inside and outside the vessel, this is why you have fluid cells on both sides. If you just need internal flow modeling, you will need to modify your stl file so you only have the inner shell of the geometry. If you are new to MFiX, my recommendation is to get familiar with the meshing and setup with simpler geometries so it is not overwhelming.