Marangoni convection
 

Hello, BuzzB!
In the VOF method and Marangoni convection post, I learned that you implemented tangential surface tension in the phase System library of icoReactingMultiphaseInterFOAM.
I'm having trouble implementing it, can you please tell me how?

Hi BuzzB,

how did you manage the Implementaion? Currently, Im starting to work on the same Problem.

Dear Fellow-Foamers,

I received a lot of requests about the tangential surface tension force implementation both in icoReactingMultiphaseInterFoam and condensatingEvaporatingFoam. They both give the exact same results and have been tested with 2 different testcases more or less successfully. Unfortunately, I'm still not allowed to share the code here without publishing it beforehand. I will, however, try to get the permission to share it with you guys asap. It would be nice if we could test and improve it further. Together!

So please excuse the delay and stay tuned!

That's amazing to hear.

Dear all, I have successfully implemented the Marangi effect in the icoReactingMultiphaseInterFoam solver. If you want to know, how this can be done, you can read that in our most recent publication: https://iopscience.iop.org/article/1...61-651X/ac4a26

Marangoni
 

Do you know how to implement it in OF8/9 InterFOAM?

Your version is under ESI which I'm not sure 100% is compatible with OF8/9.

Hi gentodin,

as far as I know icoReactingMultiphaseInterFoam is not available in OF8/9 and it might be a lot of work to implement it. Please correct me if I am wrong.

If I may ask, why do you want to use OF8/9? Or do you just want the Marangoni Effect with OF8/9 specific solvers?

Regards,
Teresa

Compilation and test case
 

First of all congrats on your work. Very elegant solution to change phasesystem file instead of changing momentum equation within solver.

I wonder how did you compile newly modified phasesystem file and called it by icoReactingMultiphaseInterFoam? Did you had to change anything apart of that phasesystem file to run those cases from the article?

Moreover, could you share benchmark test case file by Sen&Davis? I would like to know how you defined dsigma/dT in your case.

Best regards,
Berin

Hi Berin,
I copied the icoReactingMultiphaseInterFoam solver, changed its name, made the changes in the source files and compiled it. That's all. Attached you can find the benchmark test case files. There, I named the new solver floWSolver2.
With the current implementation, you don't specify dsigma/dT, but a table with temperatures and corresponding surface tension values.

Best regards,
Florian

Of8
 

Hi Teresa,

I chose to work with OF8 initially as I obtained training for it specifically. The other training under ESI I did not realize it until I have already implemented most of my physics.

Nevertheless, I figured out how to implement the physics already.

Cheers.

Hello Florian



I am trying to implement marangoni by adding the equation to phasesystem file but it is a read only file. Could you please let me know how you did you do it?


Is there something I am missing?

User rights of files are changed with system specific commands. So you could google with the info what system you are using and find out how to change the permissions for the file. Often it makes sense to save files before changing them or to change only copies.

can you please explain what "kappa" means in this formula?

Thank you.

"Kappa" usually denotes the interface curvature.