I would like to model the EM field of two objects in air at different relative positions. So my conditions are the following:
the air frame has a boundary behaving as a port (incoming plane em wave)
one small object is "moving" at different position on the surface of the other object. I put the word MOVING in quotation marks because i'm not interested in transient solution but just static ones
So now my questions are the following:
Can I parametrize the position of an object in Elmer?
if not, is it possible to create a way to automatize the procedure elsewhere and implement it in Elmer?
In post-processing phase, is possible to create a video/clip with those multiple simulations? ( in Elmer or in Paraview e.g.)
Thank you very much for the help and any possible suggestions
Cheers
thank you very much for your feedback, however in my case the simulation is 3D and the small object has a rather specific form and a specific trajectory. would it be possible to create different meshes for each position and then feed it to the solver in an iterative way?
I believe that is possible. You can create a mesh for every step, then use restart to start each step with the previous saved field variables. However the previous technique discussed is not limited to 2D, I have done it in 3D. The specific form is just a function of its mesh. The trajectory can be programmed into the sif using lau, matc, or a user function.
Perhaps you could post the first position as an example?
You can easily replicate it if you use salome and dakota in the pipeline. You can change Salome for gmsh if you want, I prefer to use Salome for all my meshing tasks. I haven't been able to get good results with mortar and edge elements, I might be just missing some flags but have not find the right combination yet. The test cases run pretty nice but I get poor results whenever I use one of my meshes. Probably Peter could shed some light on this topic.
Quick question for Peter: can we use MMG with MagnetoDyanmics Solvers (2d/3D)? Is there a test case I can use as reference? I have tried MMG myself with both solvers (2d/3D) with no luck. I assume MMG+edge elements might not play along that well but I guess that a 2D case might be possible.
MMG is a remeshing library that can take desired mesh density field as input. This field may be generated by error indicators but those are available only for select equations - AV solver is currently not supported. More realistic would be a remeshing procedure where desired mesh density is provided by some other means.
Thank you very much for your answers and your help. And Happy new Year!
What I wish to do is to calculate the EM field in a volume (air) where I have a metallic sphere "moving" inside it. Inside this volume there is also a metallic plate at rest. I also post a mesh example. Unfortunately I'm new at this kind of simulations and It's not particularly evident what would be the best approach.
Thank you very much again and I will dig in all your suggestions thoroughly.