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Reply To: Viscosity ratio (10-100)

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April 8, 2025 at 11:07 am #10015
TimBingert
Participant

Hi Amirmansour,

considering your project, the closest example would be something like the fourRollMill2d or binaryShearFlow2d in the multiComponent folder. It already includes boundaries and uses a phase field free energy model to describe the immiscible flow. The model is not implemented with density or viscosity ratio, but you could implement a viscosity ratio yourself depending on the order parameter.
Or you could wait a few weeks for the next release of OpenLB that will provide more advanced phase field models that can deal with high density and viscosity ratios.

Hope this helps.

Kind regards,
Tim