[jinuvarghese]

Hi,
I would like to know if there is any option avaliable in CFX to model the copper traces and thermal vias in PCB?
Pls help

[ghorrocks]

CFX does not have a button you can press to activate a copper trace model, but it does have a wide variety of physics and material models so if you model your setup then CFX probably has the physics to model it. But you have to define the physics, of course.

[jinuvarghese]

Originally Posted by ghorrocks

CFX does not have a button you can press to activate a copper trace model, but it does have a wide variety of physics and material models so if you model your setup then CFX probably has the physics to model it. But you have to define the physics, of course.

Thanks for your reply.
As I am new to CFX can you please tell me which physics and materials models should included to accurately model copper traces and thermal vias in pcb. my problem is a conjugate heat transfer analysis and enclosure itself acts as a heatsink,so i want to model accurately the heat transfer from PCB to the enclosure.

[ghorrocks]

This sounds like a conjugate heat transfer model, or CHT. There are examples of doing this type of simulation in the CFX examples. The examples are available on the ANSYS customer website.

Once you know the basics you are going to have to generate a solid model with all the various materials in it. Then you assign the different material models to the solids, define them as solid or fluid and then set up the detailed conditions for each body.

[Huilopanich]

I apologize if I am reviving the thread just wanted to say that CFX does not have a button you can press to activate a copper trace model and that was kinda weird for me. I am currently trying to fix this with help of my friend as he is a specialist in that domain and he told me that he will use a prototype circuit board to fix the issue. I hope he will fix it soon and I will share with you what he had done or alternatively, I can invite him to this forum and he will explain everything by himself. Probably that will be much easier to do in this case scenario, so stay tuned.

[Gert-Jan]

If you want to do modeling on electronic PCB's, then switch to ANSYS Icepak. This has the funtionality you are looking for.