Para solid model

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

Dear sir,

 I am importing para solid files into Acu solve but to run acu solve simulation the parasolid should be of solid type but what i am using is a hollow cylinder to analyze the fluid flow at one inlet and two outlets, similar like Y channel. my query is how i can i make my hollow cylinder of para solid type to analyze in Acu solve.Will it be possible to do my simulation. if not what steps i have to take???

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Answers

  • ydigit
    ydigit
    Altair Employee
    edited June 2014

    http://www.altairuniversity.com/2013/02/19/how-to-extract-cfd-volume-from-cad-part-tutorial/

    That tutorial should be helpful. It uses HyperMesh.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2014

    Thank you !!!
    After following the tutorial I did the same steps to my model and I tried to export as parasolid again from hypermesh so that i can import in acusolve for solving. but to my surprise I found this error.. Can you please tell what is this error and how can i debug this !!!
    Traceback (most recent call last):
      File 'pnlFile.py', line 323, in importFile
      File 'pnlWin.py', line 1440, in readData
      File 'pnlImport.py', line 178, in readData
      File 'pnlImport.py', line 294, in readDataFile
      File 'pnlLoadGeom.py', line 264, in __init__
      File 'pnlLoadGeom.py', line 293, in readGeom
      File 'pnlLoadGeom.py', line 357, in loadGeomData
      File 'pnlLoadGeom.py', line 705, in readCad
      File 'agsModel.pxi', line 1471, in acugs.AgsModel.createSimModelMap
    AgsError: There are zero region sets in the model

  • ydigit
    ydigit
    Altair Employee
    edited June 2014

    Please follow the steps mentioned in http://training.altairuniversity.com/analysis/cfd/pipe-flow-analysis-using-hypermesh-and-acusolve/

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited June 2014
    Altair Forum User said:

    Hello Sir

    I tried to solve accordingly and in 4th page in the document, there is an option called check 2d mesh. In my hypermesh I didn't find it. is there any other way to do this.

  • ydigit
    ydigit
    Altair Employee
    edited June 2014

    It might  probably be helpful to visit HyperMesh training. That would be helpful to get you started with HyperMesh basics requried for such tasks.

     

    For the current task, you could also use SolidThinking Inspire 2014 to get the negative/fluid volume from the hollow part. Use the 'plug' option to get the fluid contact area.

    <?xml version="1.0" encoding="UTF-8"?>post-5017-0-46506400-1404131901_thumb.pn

    <?xml version="1.0" encoding="UTF-8"?>post-5017-0-14654600-1404131912_thumb.pn

    <?xml version="1.0" encoding="UTF-8"?>post-5017-0-50670400-1404131940_thumb.jp

  • acupro
    acupro
    Altair Employee
    edited June 2014

    In your CAD package, if you have the true solids defined - but you want the fluid volume for CFD - you can add the inlet and outlet(s) faces as simply surfaces, then export the ParaSolid.  In this case, the solid volume in the CAD is representing the solid material - and the fluid material is represented by 'void' but bounded by surfaces.  When you import the parasolid to AcuConsole, enable the option to 'Fill Voids' and the 'solid' for the fluid volume will be cretaed during the import process, based on the bounding surfaces.

     

    In AcuConsole, place the 'solid' region into a separate Volume group, and set the Volume Mesh Attributes to 'No Mesh' for that group.  That volume and its attached surfaces will not be meshed.

     

    Work with the fluid volume and its bounding surfaces as normal.

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