Thanks for the video, it helped me get started with Elmer. One comment on the equation setup: To get the sif file to already have the equation include both solvers (so one doesn't have to edit it later), its only necessary to have MgDyn (Pre-) and MgDnyPost in the same equation - activating and setting up both in the same Equation dialog. Then you only have one equation which is basically what you are editing it to in the sif file
This tutorial has been extremely helpful, thank you. I was able to follow your tutorial using the downloaded .geo file from the github successfully use elmer to get the same result that you show in the video. I would like to move onto making my own CAD files and simulating, but I've been having a lot of trouble getting elmer to work with any CAD design that I make. I recreated the same two bar magnets at the center of a large cube in FreeCAD (boolean fragment the three bodies), exported it as a step file (I've also tried IGES), opened that step file in gmsh, set up size fields in gmsh to get a mesh comparable (mine is a slightly finer mesh) to the one that was shown in this tutorial. It opens fine in elmer and I can set all the same material settings, external boundary condition, etc. However, when I then run the solver, elmer doesn't converge, and I don't understand why. Do you have any tips for creating my own geometries to run this simulation? Thanks for any help you can provide. Edit: I figured it out. I needed to do the boolean fragment with the mode set to compsolid and then export as a .brep file instead of .stp, hope someone else finds this useful.
@@nanoindus Hi there. I deal with primarily non-transient permanent magnet simulations. However, it will take some time to make some electromagnet tutorials since I will need to teach myself how to set the electromagnetic simulation up first. Stay tuned.
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Thanks for the video, it helped me get started with Elmer.
One comment on the equation setup:
To get the sif file to already have the equation include both solvers (so one doesn't have to edit it later), its only necessary to have MgDyn (Pre-) and MgDnyPost in the same equation - activating and setting up both in the same Equation dialog. Then you only have one equation which is basically what you are editing it to in the sif file
This tutorial has been extremely helpful, thank you. I was able to follow your tutorial using the downloaded .geo file from the github successfully use elmer to get the same result that you show in the video. I would like to move onto making my own CAD files and simulating, but I've been having a lot of trouble getting elmer to work with any CAD design that I make.
I recreated the same two bar magnets at the center of a large cube in FreeCAD (boolean fragment the three bodies), exported it as a step file (I've also tried IGES), opened that step file in gmsh, set up size fields in gmsh to get a mesh comparable (mine is a slightly finer mesh) to the one that was shown in this tutorial. It opens fine in elmer and I can set all the same material settings, external boundary condition, etc. However, when I then run the solver, elmer doesn't converge, and I don't understand why.
Do you have any tips for creating my own geometries to run this simulation? Thanks for any help you can provide.
Edit:
I figured it out. I needed to do the boolean fragment with the mode set to compsolid and then export as a .brep file instead of .stp, hope someone else finds this useful.
hi, this tutorial made me understand elmer with ease. do you have any more tutorials? specifically electromagnets?
Do you have any more tutorials on electromagnets? or electromagnets and Permanent magnets together?
@@nanoindus Hi there. I deal with primarily non-transient permanent magnet simulations. However, it will take some time to make some electromagnet tutorials since I will need to teach myself how to set the electromagnetic simulation up first. Stay tuned.
Thank you so much for this.
Thanks a lot!!!