Elmer Discussion Forum

Hi all,

I'm still struggling to get this to work

Does anyone have any suggestions or examples?

Hi Peter,

Alright, thanks very much.

Edit: I've sat fiddling with the BCs but am still not able to create a uniform H-field at an arbitrary angle in 3D. Would you perhaps have some insight for me as to how I can do it other than brute forcing all the combinations

Cheers,
Nick

Ok so I have a follow-up question. If I'm understanding the manual correctly (page 122 just below EQ 18.56), it is saying that magnetic field strength xyz is specifying the tangential components? Also, what coordinate system is this made with respect to? Does xyz correspond to the global xyz system ...

Oh wow that's some basic calculus I forgot! Thanks Kevin

Hi all, I'd like to know if it is possible to set the magnetic field strength property, for a boundary condition, so that the field emanating from the surface is in an arbitrary direction? For example, I'd like define the field to point in the direction of the vector P in the image below. Is somethi...

Hi Peter,

Ok so I have been fiddling with the configuration based on the settings you provided. Unfortunately I'm still not able to get a convergence. Do you have any other recommendations?

Thanks again for all your help.

Nick

Thank you

I will modify the case.sif and get back to you!

Cheers,
Nick

Hi Peter, Thanks very much. I will look into your suggestion about the feedback mechanism. I have one last question I was hoping you could help me resolve. I just have a cube with a non-linear B-H material applied to it. There is a magnetic flux density being generated at the front and back of the c...

Hi Peter, I just wanted some clarification with regards to your previous post. Hi The correct internal BC's are included automatically in the formulation in an implicit manner. However, if you try to solve an analytic reference solution that's is something to consider. This sounds like some nonlinea...

Hi Peter, Ok, thank you very much. I'm not actually simulating a control problem :P I'm using Elmer to model magnetic field reversals recorded in layers of rock (and Elmer is working quite well so far). I'm going to be measuring the magnetic field of about ~2km of rock drill core samples samples and...