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Hydrophobic and Hydrophilic wall conditions

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Old   November 26, 2016, 11:13
Default Hydrophobic and Hydrophilic wall conditions
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Hello

I'm simulating flows inside a Microfluidic device in which surface tensions and wall adhesion are not negligable.
I'd like to do two simulations;one with a wall which is fully hydrophobic (represent a wall made of glass) and the other is a hydrophilic wall (represent a wall made of PDMS).

I'd like to use either a VOF or Mixture models,but I noticed that when Mixture is used - wall adhesion and surface tension cannot be defined.

So,how shall I charcterize the two behaviors in Fluent?
I thought define them by the shear conditions rather then the surface tension.
Is it right to assume that a fully hydrophobic wall one might expect zero shear stress?

Any other ideas will be highly appreciated.
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Old   September 3, 2017, 23:54
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In VOF model, wall adhesion can be applied.
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