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addSlipBoundary

OpenLB – Open Source Lattice Boltzmann Code › Forums › on Lattice Boltzmann Methods › General Topics › addSlipBoundary

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  • March 27, 2018 at 5:42 pm #1971
    mario.ponce
    Member

    Hi community,

    I’m implementing the addSlipBoundary. However I get the following message:
    “[BoundaryConditionInstantiator3D] Warning: Could not addSlipBoundary (454, 0, 28), discreteNormal=(0,0,0,0), set to bounceBack
    “
    in every cell of the domain I want to implemented this.

    Any suggestion for fixing this issue?

    Regards,
    Mario

    March 28, 2018 at 7:45 am #2820
    mathias
    Keymaster

    Dear Mario,

    it looks like your geometry is somehow irgegular. The slip BC works for boundaries which are parallel to lattice directions.

    Best
    Mathias

    March 28, 2018 at 8:00 am #2821
    mario.ponce
    Member

    Hi Mathias,
    Indeed It is irregular. However, I’m trying to add it to the top of the geometry that is parallel to the plane z.

    March 28, 2018 at 8:08 am #2822
    mathias
    Keymaster

    What about the corners? There should be no corners. Best Mathias

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