Heating with a Moving Laser
Model ID: 699
Lasers are commonly used to achieve precision heating or welding. The beam often moves over the surface of the substrate. One difficulty with modeling a laser heat source is the fact that the beam is very narrow (nm-mm). Another is that the laser has a certain penetration depth which may be important. The purpose of this model is to demonstrate how to model a moving depth-distributed line heat source in COMSOL Multiphysics using a 3D-1D coupling. The results show that the penetration depth plays an important role in the heating process.
|Temperature field and penetration depth after 0.42 s of rotating the laser.|