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Strange mesh for the model
Posted Oct 9, 2012, 5:53 AM EDT 1 Reply
i'm new in this forum, and i'm new to use comsol.
for a thesis work i've to model the Laser Ultrasonics Physics.
i've already read some posts and download some pdf about it, but there are some problems to resolve.
the electromagnetic wave penetrate in the model for about 10nm, and the spot laser is 6mm of diameter.
i didn't use the EM physic, but i can built the same effect just using the thermal stress.
the question is:
since it's impossibile to mesh all in one model, i'd like to separe the model in two different sub models:
the first should be only the thermal expansion (little volume)
the second should be the acoustic transient in the material (ultrasonics wave) (big volume)
i would take the displacement field of the first one solution and put in the second one.
the problem is:
have i to export displacement by hand!?
is there a method to do the two model and two physics in the same working area, e.g. deselecting some parts of the model?
if i'm in the wrong way, and you have got some different ideas, please help me.