How to Input a Time-Dependent Function in COMSOL for Heat Flow Simulation?

[kem08]

Hello,
I wish to model with Comsol a simple situation: a plasterboard undergoes locally with one 3 ms duration a very short flash (Dirac) and I would like to see the evolution during the time of the wave of heat through volume.
The problem it is that I do not know how to enter a function describing during time the flow received by my field.
In which menu of Comsol is necessary it to go?
Help me because it is very important.
Thank you.

 

[Mech_Engineer]

It sounds like a relatively simple transient thermal analysis. Are you sure you're using a transient analysis in Comsol? Comsol has several tutorials that deal with this kind of problem...

 

[multiphysics]

Have you tried asking your question in the COMSOL Community Discussion Forum?
Your question may get answered faster there. http://www.comsol.com/community

Hello,
I wish to model with Comsol a simple situation: a plasterboard undergoes locally with one 3 ms duration a very short flash (Dirac) and I would like to see the evolution during the time of the wave of heat through volume.
The problem it is that I do not know how to enter a function describing during time the flow received by my field.
In which menu of Comsol is necessary it to go?
Help me because it is very important.
Thank you.