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Heating fluid with laser ray

Posted Feb 16, 2017, 3:22 p.m. EST Heat Transfer & Phase Change Version 5.2a 2 Replies

Mohamad Barekati Goudarzi
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I am trying to simulate a system with N2+SF6 gas flow under laser irradiation. SF6 can be considered as an absorbent for laser ray due to its molecular size. I am wondering what model is available for this case if there is any.
2 Replies Last Post Feb 16, 2017, 6:07 p.m. EST
Walter Frei COMSOL Employee

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Posted: 8 years ago Feb 16, 2017, 5:32 p.m. EST
Hello Mohamad,

Although it is not completely clear what kind of model that you want to make, in general if you're speaking of heating due to laser irradiation, there are several possible modeling approaches that may be appropriate, described here:
www.comsol.com/blogs/modeling-laser-material-interactions-in-comsol-multiphysics/

In particular, it is possible that is is what you are after:
www.comsol.com/blogs/modeling-laser-material-interactions-with-the-beer-lambert-law/

Best Regards,
Hello Mohamad, Although it is not completely clear what kind of model that you want to make, in general if you're speaking of heating due to laser irradiation, there are several possible modeling approaches that may be appropriate, described here: https://www.comsol.com/blogs/modeling-laser-material-interactions-in-comsol-multiphysics/ In particular, it is possible that is is what you are after: https://www.comsol.com/blogs/modeling-laser-material-interactions-with-the-beer-lambert-law/ Best Regards,
Mohamad Barekati Goudarzi
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Posted: 8 years ago Feb 16, 2017, 6:07 p.m. EST
I am trying to model the temperature profile as a results of laser radiation being absorbed by SF6 gas. There is no solid object olinvolved in this model and the heat is basically generated by SF6 gas when it comes into contact with laser. I hope it clarifies the problem.
I am trying to model the temperature profile as a results of laser radiation being absorbed by SF6 gas. There is no solid object olinvolved in this model and the heat is basically generated by SF6 gas when it comes into contact with laser. I hope it clarifies the problem.

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