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Help in evaporation/phase transition

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Old   December 20, 2012, 04:53
Default Help in evaporation/phase transition
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Yiannis
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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
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Old   December 25, 2012, 14:14
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yijin Mao
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Quote:
Originally Posted by copros View Post
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.
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Old   January 7, 2013, 04:42
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Yiannis
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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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