Menu

Discussion Forum

New Discussion
Filtern

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.

Moving laser

Posted 15.04.2017, 16:25 GMT-4 Wave Optics, Heat Transfer & Phase Change 0 Replies

Xing Zhang
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi, all,

I just begin studying laser heating simulation in terms of a moving laser hitting on a block. I used a laser with 100W and spot size 1mm on Iron. The laser moves along one direction (0-14mm in 5s ). laser is defined as P*gp1(x-wv1(t))*gp1(y).

After running the simulation, I find that the highest temperature is rising while moving forward. For instance, at 0s and x=0, the highest temperature is around 700K while at 5s and x=14mm, the highest temperature is about 900K. If I increase the laser intensity or moving distance, this temperature difference will be even larger.

I know there might be some sort of heat accumulation during the heating process but I didn't expect to see such high temperature difference. The highest temperature should be on the same level. So what happened here?

Thanks,
Xing
0 Replies Last Post 15.04.2017, 16:25 GMT-4
COMSOL Moderator

Hello Xing Zhang

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.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content