FSI about blood and vessel with Radioss.

Motoki Koga
Motoki Koga Altair Community Member
edited January 29 in 質問と回答 (Q&A)

I am trying FSI about blood and vessel with Radioss.

I am trying to perform the analysis by imposing boundary conditions such as constraining both ends of the vessel, no-slip condition at the wall surface, and an inflow velocity of 0.2 m/s. However, inflow velocity is not transmitted to the periphery.

what shall I do?

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Answers

  • Altair_Ichikawa
    Altair_Ichikawa New Altair Community Member
    edited January 23

    Inlet flow conditions should be added by /MAT/BOUNT. /IMPVEL is used for the movement of Lagrangian mesh.

     

  • Motoki Koga
    Motoki Koga Altair Community Member
    edited January 29
    Altair_Ichikawa said:

    Inlet flow conditions should be added by /MAT/BOUNT. /IMPVEL is used for the movement of Lagrangian mesh.

     

    Thanks. This problem has solved.

    The calculation converges and I can see the phenomenon in the h3d file, but is it not good for the analysis that the energy error is around -90%?

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