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defining a Gaussian heat source

Posted May 21, 2011, 12:47 p.m. EDT Heat Transfer & Phase Change 5 Replies

Amina Ben Amor
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hello, I am trying to simulate an hybrid laser welding model using COMSOl.. I need to use a 2D Gaussian heat source but I don't know how to define it or the expression to use.. could you help me?
thanks
5 Replies Last Post May 26, 2017, 9:40 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago May 23, 2011, 1:53 a.m. EDT
Hi
try a search on the forum, it has been discussed a few times, and there are several examples out here

--
Good luck
Ivar
Hi try a search on the forum, it has been discussed a few times, and there are several examples out here -- Good luck Ivar
Qingqing Cheng
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Posted: 1 decade ago Jun 17, 2011, 7:28 a.m. EDT
Hi:

A difficult question on 3-dimension RF module be on the corner.Seeking help be on the way orient to Comsol company.Please tell me the e-mail address!thank you```
Regardly,
Hi: A difficult question on 3-dimension RF module be on the corner.Seeking help be on the way orient to Comsol company.Please tell me the e-mail address!thank you``` Regardly,
Qingqing Cheng
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Posted: 1 decade ago Jun 17, 2011, 7:35 a.m. EDT
Updated: 8 years ago May 26, 2017, 10:48 a.m. EDT
How can I get this picture??

I don`t know how to set the solver parameter??thanks for you reply!
regardly

How can I get this picture?? I don`t know how to set the solver parameter??thanks for you reply! regardly

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Reza Esfahani
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Posted: 1 decade ago Dec 21, 2011, 7:58 a.m. EST
Dear User,

Using comsoI,I am trying to model laser welding of dissimilar materials while the work-piece is moving with constant speed beneath the laser nozzle.Unfortunately,it seems,I have roughly the same problem you had to define the heat source.(In my case I am looking to define a volumetric Gaussian heat source as I think the heat source should be w/m^3.

Now i just was wondering if you could kindly let me know how did you define the heat source in your case or if you have any idea.

Thanks for your taking time to read my email,

Kindly Regards
Reza
Dear User, Using comsoI,I am trying to model laser welding of dissimilar materials while the work-piece is moving with constant speed beneath the laser nozzle.Unfortunately,it seems,I have roughly the same problem you had to define the heat source.(In my case I am looking to define a volumetric Gaussian heat source as I think the heat source should be w/m^3. Now i just was wondering if you could kindly let me know how did you define the heat source in your case or if you have any idea. Thanks for your taking time to read my email, Kindly Regards Reza
Santosh Gupta
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Posted: 8 years ago May 26, 2017, 9:40 a.m. EDT
can I access a video that simulates the laser welding
can I access a video that simulates the laser welding

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