Elmer Discussion Forum

Hello Peter,

Thank you for the very fast reply. For the moment option 2 was the simplest method and it worked well!

Nice weekend!
Martin

Hi all, ElmerSolver gave an error in the case of more than 20 variables in ScalarData using masks. In my sif file, I used for the solvers: Solver 2 Equation = ScalarsDiffusiveFlux Procedure = "SaveData" "SaveScalars" Exec Solver = After Timestep Filename = flow_diffusive_flux.dat...

Hi,

Perhaps it is also possible to mention the possibility to relate a Body and a Boundary Condition section to the mesh by using the keyword Name instead of using the keywords Target Bodies and Target Boundaries.

Kind regards,
Martin Hoeijmakers

Hi,

If you are using FourierLossSolver, you may look at viewtopic.php?p=25654#p25654.

Kind regards,
Martin

Hi,

The second tip (conforming BCs) gave an improvement in speed of about 20% in my case: nice!

The third tip (removing RigidMeshMapper) gave hardly any improvement in speed (perhaps 2%). However, I have to mention that I changed MATC into LUA earlier.

Kind regards,
Martin

Hi, Peter, thanks for checking my set. I think, I found why the conforming BCs didn't work in my case. The boundaries are used in pairs. Call one boundary CW (clock wise) and the other boundary CCW (counter-clock wise). If you always use CW as the first boundary (with the keys, such as "Conform...

Hello Peter, I can understand your problem with the documentation. At this moment, I'm writing my own notes based on studying the source code. However, that is also quite a puzzle because of lack of comments, but I think it still is a good investment, as the software itself is superb. For me (and I ...

Hi Peter, I think Elmer is extremely good software, but it takes some time to learn how to handle it. Personally, I learned a lot from the tutorials by Pavel Ponomarev. However, I have seen that it is sometimes also necessary to look into the source code and to keep an eye on the developments by loo...

Hi, These are nice examples to show what I meant earlier. The relative difference between "elmer Torque Arkkio" and "elmer Torque Component" is in the order of magnitude of 5%. Perhaps, that is not a big difference, but it is certainly not a small difference. If you want to calcu...

Hi Peter, About a year ago I did many experiments for calculation of the torque. Using nodal forces, I experienced problems with - air-holes in the rotor, - permanent magnets (see also http://www.elmerfem.org/forum/viewtopic.php?p=24964 , on which I didn't get any response), and - non-magnetic, elec...