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-   -   Help in evaporation/phase transition (http://www.cfd-online.com/Forums/openfoam-programming-development/110768-help-evaporation-phase-transition.html)

copros December 20, 2012 05:53

Help in evaporation/phase transition
 
Good morning

I am very new to OPENFOAM and I don't know exactly how to find my way through picking up the right solver in order to change it for my case.
I am trying to simulate the evaporation and phase transition of a solution of water with particle, using a single fluid model with a diffusion coefficient that depends on the concentration of particles.
Particle concentration will be given by the solution of scalar. I am also,thinking of using dynamic mesh.

So my questions/requests are
1) If it's possible for OPENFOAM to have a diffusion coefficient depending on a variable that is being solved
2) If yes, is there any list with the names of the variables
3) Suggestions of solvers I could use

alundilong December 25, 2012 15:14

Quote:

Originally Posted by copros (Post 398394)
Good morning

I am very new to OPENFOAM and I don't know exactly how to find my way through picking up the right solver in order to change it for my case.
I am trying to simulate the evaporation and phase transition of a solution of water with particle, using a single fluid model with a diffusion coefficient that depends on the concentration of particles.
Particle concentration will be given by the solution of scalar. I am also,thinking of using dynamic mesh.

So my questions/requests are
1) If it's possible for OPENFOAM to have a diffusion coefficient depending on a variable that is being solved
2) If yes, is there any list with the names of the variables
3) Suggestions of solvers I could use

It is quite possible to simulate this case if you learn CFDEM which coupled OpenFOAM and LIGGGHTS(Improved LAMMPS).
OR,
OpenFOAM has its own DEM library, you may study that package.
For the solver, if you go CFDEM, you may get some idea. But you have to build your own solver.

copros January 7, 2013 05:42

Thank you for your answer

The thing is that I don't want to use fluid-particle interaction model. I want to model it just as a single fluid, since the properties of the solution are known.


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