Elmer Discussion Forum

Hi again, Sorry. Quite a long time ago, but I could not dedicate time to it. What I realised is that the problem is the same in other coupled problems using the electric field. If you run the electrokinetics example, you get the same problem (it does not work). There is no effect of the electric fie...

Hi,
This problem seems to remain the same. Is there any possibility to solve it? I could provide a simple example where this problem appears.
Regards,
mancf

Hi Annier, Up to now I have not had to modify the code... Taking into account that I have never programmed in fortran, this can take quite a while for me. I have always used the compiled version for Windows. In any case, I will try to do something with it during the next weeks. Thanks in any case, m...

Hi Annier, I have tested different options for the piezoelectric coefficients. I have used all these coefficients different than 0 and with very high values. This should generate a large deformation. The problem is that the solver seems to ignore them. It only takes into account the stress body forc...

Thanks Annier, Sorry, probably I did not explain myself properly. In this problem, two types of loads are applied: a voltage difference applied to the piezo and stress body forces. Both loads should cause deformation of the structure. (Correct me if I am wrong...). If I remove the stress body forces...

Hi,
In the piezo test case, if we remove the 'Stress BodyForce' from the body force section, it doesn't appear any stress from the applied field. I would say that there is some error. Could someone cross-check it?
Regards,

Hi Annier, Thank you. The first model is quite simple. But the second example is very interesting. It appears some parameters (like "Particle Distance" and Particle Reflect) which do not appear in the models manual, and it can make it work. I will try to test it on Monday. Regards and nice...

Hi Matthias, Yes, I have read the Models Manual. This is why I was meaning that maybe some parameters are not clearly explained (or at least that I have not understood them well). No problem. I will wait for an answer... In any case, maybe there is also someone else who have been struggling with thi...

Hi Annier, I am trying to understand the code, but it is not easy. As far as I have understood, the bounding box (I suppose you mean for initialization) has nothing to do with the "box". I think that the code tries to look for the "biggest box" of the domain, or something like th...

Thanks Annier, But it is difficult to follow the code. For example, I can not find the subroutine ParticleBoxContact() in this module... (It seems to be located in particleutils module). Nevertheless, maybe these basic (and important) things should be explained as clear as possible in the manuals. D...