file type for simulation

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

hellow , i have a question;

 I have to make a fluid dynamics simulation to a formula sae car, but for the machine files I have a file solidworks 'assembly'.

if I create a file .iges  this is very heavy because I have a lot of machine components, if i create a file .stl this export  only lines and create complex surface in hypermesh is not simple.

How can I fix the problem ?

I have to change the file type? 

can i use some program that allows me to make my geometry suited to a simulation ?

Thanks :D/emoticons/default_biggrin.png' srcset='/emoticons/biggrin@2x.png 2x' title=':D' width='20'> 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2016

    Try to use STEP format (.stp, .step).

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2016

     

    I tried with the format  .step but wneh i create the 2D mesh He says to me : 'internal mesh error, try modifying element densities '

     

    how can I solve this problem ???

    thanks

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2016

    Hi,

     

    When you are importing .stp file, take care of units (scale factor in import options).

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2016

    Hi, 

    i Just Took care  about this , But the problem persists.

    do you have another idea to risolve this problem ??? 

    :)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>:)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>:)/emoticons/default_smile.png' srcset='/emoticons/smile@2x.png 2x' title=':)' width='20'>

     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2016

     

    I have solved the problem , but now the problem is to understand how to eliminate the free edge and the element duplicates.

    if i go to autocleanup HM tells me :'Element size is too big for this model'.

    thanks for the great availability.

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2016

    Hi,

     

    Edit parameters/Criteria in AutoCleanup panel and give the actual mesh size.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2020

     

    sorry for the inconvenience. can anyone help me out on how to make the mesh of this file ?

    And tell me how did you resolve the errors ?

    I do fluid dynamics simulation.

    Thanks

    Unable to find an attachment - read this blog

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited May 2016

    I see you have multiple parts which one can do 3d or 2d mesh.Could you let us know in which part you are finding difficulty to mesh.

    Free edges is easy to remove via edges command with some tolerance.

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