[hitzhwan]

what does the marangoni stress mean in the wall condition?

[aero_head]

Originally Posted by hitzhwan

what does the marangoni stress mean in the wall condition?

From the Fluent manual: The Marangoni Stress condition allows you to specify the gradient of the surface tension with respect to temperature at a wall boundary.

[hitzhwan]

Originally Posted by aero_head

From the Fluent manual: The Marangoni Stress condition allows you to specify the gradient of the surface tension with respect to temperature at a wall boundary.

Thank you , do you have the fluent 6.3.26 manual pdf file, could you send it to me because I do not have it in my software. In addition, how can I set the Marangoni stress in the gas-liquid interface?

[aero_head]

I found a better explanation for the Marangoni effect: https://www.comsol.com/multiphysics/marangoni-effect

I am not sure of the legality of distributing the manual. Judging by my professional practice for engineers course, I am sure it would be protected by copyright and not for distribution. Google is your friend. I am sure there is a setting; I'm more of a CFX person and not well versed in Fluent, but I'm sure if you searched it up on YouTube or Google, you could find your answer.

[hitzhwan]

Originally Posted by aero_head

I found a better explanation for the Marangoni effect: https://www.comsol.com/multiphysics/marangoni-effect

I am not sure of the legality of distributing the manual. Judging by my professional practice for engineers course, I am sure it would be protected by copyright and not for distribution. Google is your friend. I am sure there is a setting; I'm more of a CFX person and not well versed in Fluent, but I'm sure if you searched it up on YouTube or Google, you could find your answer.

Thank you so much, I know it a lot by your answer, do you have a udf file that can discribe the Marangoni foce (which is different from that on the wall)on the gas-liquid interface?