I’m learning about Calculix and FEM in general. I need a few pointers regarding a very simple problem.
PROBLEM: 2D heat transfer in a rectangular plate with the right edge as a convective boundary with a film coefficient of 5 and sink temperature 273.15K.
I have generated the rectangular surface in gmsh and exported it to calculix *.inp file.
Below is the screenshot of the *.inp file for the plate.
The following is the screenshot of the *.inp file for the problem along with the boundaries assigned.
tat1.nam is just a set of nodes for the bottom edge of the said rectangle which will be an isothermal boundary at t=274K
My question is, in Ansys/Spaceclaim I can set an edge of the said rectangle as a convective boundary. How do I achieve the same effect in Calculix? Accoring to the manual, *FILM command requires a face to be specified. I do not know how to move forward with the same in my case.
I have gone through the manuals (both ccx & cgx), looked into the examples, but I couldn’t find any working example that makes use of *FILM for 2D convective boundaries so far.
I would be grateful if anyone could point me in the right direction.
Thank You for your time.