ERROR # 1684

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

Hi, I am trying to do a simple case , to calculate a acoustic cavity modal,but it comes out the error as belown:
ERROR # 1684: FLUID element       25 points to non-fluid GRID     28.

I don't know why, please help.

Thanks in advance.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2017

    Hi @franky

     

    To define fluid component for a coupled fluid structural analysis, select all elements of fluid component(s)>>CARD EDIT>>activate CD-1 as shown in image. 

    <?xml version="1.0" encoding="UTF-8"?>Fluid_Grid.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited May 2017

    Thank you for your quickly reply. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    I have the similar model but i cant find grid option for element 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hi @mosadeq007

     

    Grid is card image for nodes. 

     

    Please card edit nodes(GRID) instead of elements. 

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