Menu

Discussion Forum

New Discussion
查找

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Electrostatics on a thermally expanded or contracted model

Posted 2019年3月8日 GMT-5 05:39 Version 5.4 4 Replies

Pavlos Zairis
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Good mornign everyone,

I am currently investigating the electric field distribution on a cable termination and would like to perform the following analysis:

  • Calculation of electric field at initial state (Electrostatics)
  • Thermal expansion of the model at different temperatures (Heat transfer in solids plus Solid Mechanics physics)
  • Calculation of electric field at expanded state (Electrostatics with initial condition taken from the thermal expansion study)

Currently, I don't think that there is a link between the thermal expansion model and the electrostatics one, so I am wondering if someone has any experience at this kind of modeling.

Thanks in advance for your responses.

Kind regards,

Pavlos.

4 Replies Last Post 2019年3月18日 GMT-4 05:33
Edgar J. Kaiser Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 2019年3月8日 GMT-5 09:02

Hi Pavlos,

I guess the most straightforward solution is to add a moving mesh and control the mesh deformation with the deformation from the thermal-structural physics.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi Pavlos, I guess the most straightforward solution is to add a moving mesh and control the mesh deformation with the deformation from the thermal-structural physics. Cheers Edgar
Pavlos Zairis
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 2019年3月8日 GMT-5 09:24

Hi Edgar,

Thanks for the advice. Actually I found a guide on how to do that and I am following that one at the moment.

Please find a link here: https://www.comsol.de/blogs/how-to-reuse-a-deformed-shape-as-a-geometry-input/

I believe the other option is you said, using ALE with solid mechanics and electrostatics.

Thanks for your time.

Kind regards,

Pavlos.

Hi Edgar, Thanks for the advice. Actually I found a guide on how to do that and I am following that one at the moment. Please find a link here: https://www.comsol.de/blogs/how-to-reuse-a-deformed-shape-as-a-geometry-input/ I believe the other option is you said, using ALE with solid mechanics and electrostatics. Thanks for your time. Kind regards, Pavlos.
Edgar J. Kaiser Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 2019年3月8日 GMT-5 12:04

Pavlos,

yes the manual procedure in the blog should work as well. With the ALE you can achieve a fully coupled and dynamic procedure.

Good luck Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Pavlos, yes the manual procedure in the blog should work as well. With the ALE you can achieve a fully coupled and dynamic procedure. Good luck Edgar
Pavlos Zairis
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 2019年3月18日 GMT-4 05:33

Hi Edgar,

Thank you very much for the advice.

I will try it both ways to identify the one that suits my case best. (By using the guide, I get some errors that the mesh is problematic in some cases)

Kind regards,

Pavlos.

Hi Edgar, Thank you very much for the advice. I will try it both ways to identify the one that suits my case best. (By using the guide, I get some errors that the mesh is problematic in some cases) Kind regards, Pavlos.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content