Why can't I vary element size in automesh?

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello,

 

I made a simple outer geometry with complex inner shape.

 

So, I decided to make the 2d element size small for the complex region

 

and larger element size for the simple region.

 

But all the elements seem to be the same size, without varying in size.

 

What is the problem? 

 

 

I attached screen capture files 

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<?xml version="1.0" encoding="UTF-8"?>post-39893-0-88826500-1443684665_thumb.j

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Answers

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited October 2015

    This could be due to various reasons specific to your model,

     

    One of them would be to maintain connectivity, if the smaller elements have to be connected to the larger element region at various points, it will be necessary to decrease the element size there. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2015

    So, I tried to use 

     

    'QI optimize,' 'edge deviation,' and 'surface deviation'

     

    to make 2d mesh varying in element size.

     

    But the methods seem to be same as 'size and bias' method.

     

    How can I fix the problem? 

     

    Thanks.

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited October 2015

    Hi,

     

    To have more control on element size please use Interactive in Automesh panel.This will take you to secondary automesh panel where you would have control along edges & element size.

    In your case i see from the shared screenshot you used automatic method.Please try with interactive method and let us know the outcome.

     

    Regards

    Rahul R

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