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.
Strange Temperature Profile simulating laser heating
Posted Mar 1, 2019, 12:33 p.m. EST Electromagnetic Heating, Heat Transfer & Phase Change, Heat Transfer 0 Replies
Please login with a confirmed email address before reporting spam
I am simulating the laser heating of a structure using the formula
to take into account the Reflection at the surface
, the absorption of each material 
and a flat-top intensity distribution given by 
The structure consists of a narrow slot (actual image of the structure: 1).
As it can be seen in the image the slot(red) is filled with a material with thermal conductivity 
and it is surrounded with a material(blue) with a thermal conductivity 
at the bottom there is another material with thermal conductivity 
and whose lower boundary is kept at 
. Red and blue materials have the same absorption coefficient 
.
What I found strange about the simulation is I get a Temperature profile at the surface of the structure where the laser heating occurs with a very big temperature peak at the position of the slot (image:2 ).
Could this be because of a problem with the boundary conditions or the meshing or could it even be correct?
Thanks if anyone can help.
Hello Erick Baca
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.