How to include solid wall wettability in SC multicomponent multiphase?

Hi Everyone,

I am working on oil-water flow through porous media. I need to consider two important features: oil-water surface tension and solid wall wettability.
However, in ShanChen model given by Palabos, I could not find the option of wall wettability. Anyone can help me with it?
I look forward to your reply.
Thanks in advance.

Best regards, Max

With the SC model you can control wettability by setting an artificial (fixed) density for each phase on the wall nodes. If you set the density on the node to 1.0 and 0.0 for phase A and B respectively, then phase A will be wetting and phase B will be non wetting.

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Thanks for your answer. I am wondering in which step and with what codes this artifical densities are set. Thank you.

Hello, do you know how this rho value specifically affects wettability? Or what is the mathematical or qualitative relationship between rho value and contact angle?