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  • Max skewness

    Posted by Srinivas K on April 17, 2023 at 6:12 am

    I have Mesh one Geometry. Then I have gave command checkMesh.

    I have more skew face how to manage this, how can i reduce the Max skew faces

     

    Time = 0

    Mesh stats
    points: 9042443
    faces: 25399412
    internal faces: 24930058
    cells: 8201440
    faces per cell: 6.13666
    boundary patches: 4
    point zones: 1
    face zones: 0
    cell zones: 0

    Overall number of cells of each type:
    hexahedra: 7392352
    prisms: 73425
    wedges: 0
    pyramids: 0
    tet wedges: 329
    tetrahedra: 2
    polyhedra: 735332
    Breakdown of polyhedra by number of faces:
    faces number of cells
    4 46748
    5 34211
    6 69961
    7 293164
    8 64798
    9 166483
    10 2620
    11 443
    12 41645
    15 15086
    18 173

    Checking topology…
    Boundary definition OK.
    Cell to face addressing OK.
    Point usage OK.
    Upper triangular ordering OK.
    Face vertices OK.
    Number of regions: 1 (OK).

    Checking patch topology for multiply connected surfaces…
    Patch Faces Points Surface topology
    walls 7800 7920 ok (non-closed singly connected)
    outlet 900 961 ok (non-closed singly connected)
    inlet 900 961 ok (non-closed singly connected)
    STOL 459754 506371 ok (closed singly connected)

    Checking geometry…
    Overall domain bounding box (-3 -5 -3) (10 5 3)
    Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
    Mesh has 3 solution (non-empty) directions (1 1 1)
    Boundary openness (-8.84708e-17 1.66085e-16 1.756e-15) OK.
    Max cell openness = 1.11671e-15 OK.
    Max aspect ratio = 54.3614 OK.
    Minimum face area = 3.09156e-09. Maximum face area = 0.0668904. Face area magnitudes OK.
    Min volume = 2.21159e-10. Max volume = 0.0133739. Total volume = 779.676. Cell volumes OK.
    Mesh non-orthogonality Max: 65.159 average: 8.26235
    Non-orthogonality check OK.
    Face pyramids OK.
    ***Max skewness = 17.2394, 11 highly skew faces detected which may impair the quality of the results
    <<Writing 11 skew faces to set skewFaces
    Coupled point location match (average 0) OK.

    Failed 1 mesh checks.

    End

     

    Barış Bicer replied 1 year, 2 months ago 2 Members · 1 Reply
  • 1 Reply
  • Barış Bicer

    Moderator
    April 17, 2023 at 10:41 pm

    17 is nothing for your skewness. Just run directly your case.

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