Radioss Material: Fluid filled cavity

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

Hi, 

 

What Radioss material card is most appropriate to simulate a fluid filled cavity? Is it also possible to enter an initial pressure?

 

Best, J

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    Hi,

    /MAT/LAW6 can be used , which is used to model Hydrodynamic Viscous Fluid Material. Please go through the same material law and  Example 22.1 - Ditching using SPH  in Help Menu.

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    Isn't this a material to simulate fluid behaviour when impacting an object into fluid? I my case a have an enclosed capsule with a fluid filled gel-like material that should have incrompessible behaviour? Do you still think Law6 is the right material? 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    Hi,

    You can check with /MAT/LAW51.  Also /MAT/LAW6 (HYDRO) would be okay.

    Please go through the Help Menu on /MAT/LAW 51 for more information and example files.