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What description is used in HX, Eulerian or Lagrangian?

User: "Rahul_P1"
Rahul_P1
Altair Employee
Updated by Rahul_P1

Hi, I am very curious that what type of description is used in HyperXtrude. If Lagrangian description is used, what's the solution for the extreme mesh distortion and deformation during the extrusion, especially in extrusion with flat die? Thanks a lot.

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    User: "Rahul_P1"
    Rahul_P1
    Altair Employee
    OP
    Updated by Rahul_P1

    Hi,
    HyperXtrude uses the Eulerian description. The mesh will not be distorted in this approach (stationary mesh and results 'move across the mesh'.
    Best Regards
    Jan

    User: "Altair Forum User"
    Altair Forum User
    Altair Employee
    Updated by Altair Forum User

    Hi, I read in a lot of papers that HyperXtrude uses an ALE approach. I would like to know when both lagrangian and eulerian methods are utilized. More in detail, which are the regions whose behaviour is described with them?

    User: "NarendraSingh"
    NarendraSingh
    Altair Employee
    Updated by NarendraSingh

    HyperXtrude solver in Arbitrary Eulerian Lagrangian (ALE) framework.Hence taking advantage from both formulations. After simulation, we update mesh in profile region based on computed velocity imbalances. 

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