Is it normal for a volume mesh to have free edges?

LIMING LI_21655
LIMING LI_21655 Altair Community Member
edited December 2020 in Community Q&A

Hi,

Is it normal for a volume mesh to have free edges?

The volume mesh is closed. Why is the free edge detected?

Thanks a lot.

Liming Li

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Answers

  • Oskar Plata_21466
    Oskar Plata_21466 New Altair Community Member
    edited December 2020

    Hi,

    check for some problems connected to mesh quality (eg. duplicate elems, very small edge lengths etc.)

    Best regards

    Oskar

  • LIMING LI_21655
    LIMING LI_21655 Altair Community Member
    edited December 2020
    Oskar Plata_21466 said:

    Hi,

    check for some problems connected to mesh quality (eg. duplicate elems, very small edge lengths etc.)

    Best regards

    Oskar

    Hi,

    Thank you for reminding.

    There is no problem in duplicate and conncectivity. 

    The target element size is 30000, and the smallest edge length is 12747. There should be also no problem in this respect.

    Liming

  • tinh
    tinh Altair Community Member
    edited December 2020

    Hi

    Yes, it is.

    You just need to ensure your volume mesh has no free faces inside, and covering faces have no T-connection

    Free edges are edges that are not shared by elements.

  • Han Nguyen
    Han Nguyen Altair Community Member
    edited December 2020

    Hi you

    Yes, it is normal. Free edge have exist because those element edge have not equivalent any element. So it appear free edge. But in volume mesh should check by "Face" option which ensure inside mesh not separate.

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