Dear Jianwen,

- exactly you can use the capillary pressure-saturation relationship.

- Why do you think that you can't set set the boundary as you initially planned? A Neumann condition is not related to a primary variable but to one of you phase balances. Which discretization method do you want to use? For the Box method you can directly set mixed conditions.

- 1pnc, n=2 -> 1p2c :); You can have n components in this model.

Best,
Martin

On 05.06.24 10:20, Jianwen Du wrote:
Hi Martin,

Thank you for your helpful suggestions.

Okay, I see. So for my first question, I will calculate the saturation of one phase based on the two phases' pressure using the capillary pressure-saturation relationship.

For my second question, I intend to set a Dirichlet boundary condition for one phase's pressure and a Neumann boundary condition for another phase's flux. If the primary variables should include one phase's pressure and one phase's saturation, I think I cannot set the boundary as I initially planned. Do you have any suggestions?

Besides, I'm afraid that I could only find "dumux/dumux/porousmediumflow/1pnc", which doesn't contain the subfolder 1p2c.

Thanks again for your help!

Sincerely,
Jianwen

--

Ph.D. student

Hydrology and Atmospheric Sciences

University of Arizona

[email protected]


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