Element not evaluated

Haoyu Liu
Haoyu Liu Altair Community Member
edited February 2021 in Community Q&A

Hi,

I am currently on the project that to build a 3D model of a spoke machine from the scratch, the geomatry and physics were fine but I do have question relevant to the mesh: 

I have define all the "parent" line and point with corresponding number of element and according the logic of meshgenerator, which will copy the setting of the mesh on the parent line and point, then applied on rest of line and point created by the propagate and extrusion. but, once I mesh my model, it showed 30% of element is not evaluated and I have no idea how to find these 30% "non-evaluated" element. 

Is it and visualization tool that flux provided so I can know where is these element are? 

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Best Answer

  • asoualmi
    asoualmi
    Altair Employee
    edited February 2021 Answer ✓

    Hi,

    CheckMesh gives the quantity (number of nodes, surface elements, volume elements) and indicators on the quality of your mesh. On the quality, we do a calculation (depending on the determinant and area / volume on the element) on the triangles / tetrahedra elements.

    Depending on the result obtained on an element, classify it in a category (excellent, good,…). And we show the% of items in each category.

    The "no evaluated elements" category is the% of elements that are not triangles / tetrahedra (= these are quadrangles / hexahedrons / pyramids,.). This command does not output the list of elements, it is impossible to view them.

    Hope this will help.

    Best regards.

Answers

  • asoualmi
    asoualmi
    Altair Employee
    edited February 2021 Answer ✓

    Hi,

    CheckMesh gives the quantity (number of nodes, surface elements, volume elements) and indicators on the quality of your mesh. On the quality, we do a calculation (depending on the determinant and area / volume on the element) on the triangles / tetrahedra elements.

    Depending on the result obtained on an element, classify it in a category (excellent, good,…). And we show the% of items in each category.

    The "no evaluated elements" category is the% of elements that are not triangles / tetrahedra (= these are quadrangles / hexahedrons / pyramids,.). This command does not output the list of elements, it is impossible to view them.

    Hope this will help.

    Best regards.

  • Haoyu Liu
    Haoyu Liu Altair Community Member
    edited February 2021
    Abdessamed said:

    Hi,

    CheckMesh gives the quantity (number of nodes, surface elements, volume elements) and indicators on the quality of your mesh. On the quality, we do a calculation (depending on the determinant and area / volume on the element) on the triangles / tetrahedra elements.

    Depending on the result obtained on an element, classify it in a category (excellent, good,…). And we show the% of items in each category.

    The "no evaluated elements" category is the% of elements that are not triangles / tetrahedra (= these are quadrangles / hexahedrons / pyramids,.). This command does not output the list of elements, it is impossible to view them.

    Hope this will help.

    Best regards.

    Hi, 

     

    Thanks for the explanation, I will try to extrusion the face which generate the triangle shape of elements. 

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