cell squish

tinh
tinh Altair Community Member
edited October 2020 in Community Q&A

Hi colleagues

Could anyone knowing about cell squish in 'check elems' panel please tell me a description for its meaning?

I found nothing in HW Help

Thanks a lot

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2013

    In my HW12 doc, I see:

     

    2D:

     

    The cell squish criteria describes the non-orthogonality of an element with respect to its faces for 3D elements or edges for 2D elements. It is defined as follows:

    For 2D elements:

    Ai = unit vector, normal to cell edge i

    ri = vector connecting the cell centroid and the middle of edge i.

    For 3D elements:

    Ai = unit area vector, normal to cell edge i

    ri = vector connecting the cell centroid and the centroid of face i

     

    3D:

     

    The cell squish criteria describes the non-orthogonality of an element with respect to its faces. It is defined as follows: with

    A = face unit area vector

    = 2D elements: vector connecting the adjacent cell centroids

    3D elements: vector connecting the cell centroids and the cell face centroid

     

    (Sorry for copy/paste, there are some missing characters)

  • tinh
    tinh Altair Community Member
    edited April 2013

    Hi,

    Thanks a lot Mr Q.NGUYEN-DAI

    I was using HW11 only

    I see sometimes HW wants to hide its informations !