Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
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.
Problem with wall layer
Posted Apr 8, 2013, 5:38 a.m. EDT Fluid & Heat, Heat Transfer & Phase Change Version 4.3a 0 Replies
Please login with a confirmed email address before reporting spam
I'm new to Comsol and modeled a U-shaped pipe in a concrete block.
Cold water (1°C) flows through the pipe and the warmer concrete (11°C) surrounding it warms up the water inside the pipe.
I used the "pipe flow" and the "heat transfer in solids" physics. Everything worked ok.
Now to the problem:
I wanted to add a PE-layer for the pipe and used the wall layer add-on within the pipe flow module (wall heat transfer).
After I added the PE-layer the temperature inside the pipe decreased way too much.
To test the problem I changed the thermal conductivity of the PE-Pipe to the value of the concrete 2,3 W/(m*K) so there should almost be no temp. difference between the model with and without the PE-layer, yet there is.
I hope somebody can help me out.
The two model files with and without the PE layer are attached.
Thank you!
Attachments:
Hello Christian Beck
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.