Export Deformed Mesh from AcuSolve Result

Junta_20361
Junta_20361 New Altair Community Member
edited July 2021 in Community Q&A

Hi experts,

I'm using Acusolve to simulate the operation of a globe valve.

Currently, I can now simulate the "closing process" of the valve.
Below is the result:

imageimage

image

The 2nd step is to simulate the "opening process" of the valve.

So I need the deformed mesh from AcuSolve result to set up for the opening stage.

Since the boundary conditions of the opening stage areimage different from the closing stage,
so I don't think restarting simulation is a good choice.

Do you have any idea to export the final mesh (2nd picture)?

I tried with AcuOut and HyperView but haven't got any result yet.

Thanks in advance!

Answers

  • Adriano Koga_20259
    Adriano Koga_20259 New Altair Community Member
    edited February 2021
    What have you tried in HV? There's the 'file>export' option that should allow you to export the deformed shape.
  • acupro
    acupro
    Altair Employee
    edited February 2021

    Sounds like you are trying to use the now-deformed coordinates/locations of the entire set of nodes as the locations for the start of your new simulation.  Is that correct?

    1.  Restart should work just fine.  During the Restart, essentially anything about the model can change - just not the number of nodes.  I would try Restart first - assuming you have a saved restart file for the end of the initial simulation.

    2.  Use acuTrans - assuming problem name = test1
    acuTrans  -pb  test1  -out  -to  table  -outv  node,crd  -ale
    This should create a .out file with the problem name and the last time step having nodal output.  Each line will be node number and coordinates.  In the input file updated for the new run, point to this new file in the COORDINATES command.

    NOTE - If the mesh between the valve and seat deformed too much, you may get negative Jacobian errors trying to start from there.  You may find you need to leave a small gap in the initial simulation - not closing all the way to contact.

  • Junta_20361
    Junta_20361 New Altair Community Member
    edited February 2021

    What have you tried in HV? There's the 'file>export' option that should allow you to export the deformed shape.

    hi Koga,

    thanks for your response.

    In HV, I tried file >> export >> deformed mesh.

    But the deformed mesh has some error.

    The node's locations are corrected, but the elements are wrong. 

    The fem file contains many redundant elements created by nodes that should not be connected.

  • Junta_20361
    Junta_20361 New Altair Community Member
    edited February 2021

    Sounds like you are trying to use the now-deformed coordinates/locations of the entire set of nodes as the locations for the start of your new simulation.  Is that correct?

    1.  Restart should work just fine.  During the Restart, essentially anything about the model can change - just not the number of nodes.  I would try Restart first - assuming you have a saved restart file for the end of the initial simulation.

    2.  Use acuTrans - assuming problem name = test1
    acuTrans  -pb  test1  -out  -to  table  -outv  node,crd  -ale
    This should create a .out file with the problem name and the last time step having nodal output.  Each line will be node number and coordinates.  In the input file updated for the new run, point to this new file in the COORDINATES command.

    NOTE - If the mesh between the valve and seat deformed too much, you may get negative Jacobian errors trying to start from there.  You may find you need to leave a small gap in the initial simulation - not closing all the way to contact.

    hi AcuPro,

    thank you for your suggestion.

    I will try with them

  • Matthias Conjaerts_21193
    Matthias Conjaerts_21193 New Altair Community Member
    edited July 2021

    Hi Junta,

    your model looks very interesting and I'm working on a somehow similar case.

    Is it possible for you to share your model?

     

    Thanks and Regards

    Matthias