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ppe1906

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Posts posted by ppe1906


  1. hi

    during the cfd tetramesh appears an error message about the dimensions of the elements (to small) 

    the min size of the 2d mesh is 3 but i ve done other simulation with min size 2 and nothing goes wrong

    i don t know what i have to do!


  2. hello everybody, i have to do an aerodynamic simulation of a race car and i ve done the 2d surface mesh of the shell and of the box (there aren t free edges or t junction).

    now i ve to do the tetramesh to simulate the fluid domain but it fails all the time and i don t know why..

    someone can help me?


  3. hi i need help

    i have  to plot the drag coefficient of a wing 

    i ve done the cfd simulation and after i opened acuprobe (it s the first time that i use it)

    i followed some instruction found on internet but i couldn t plot this coefficient 

    this is the error message that appared to me:

    thanks

    Immagine.png


  4. hello everybody,

    i have to do a CFD simulation using acusolve for a front wing of a race car.

    i ve done the 2d and 3d mesh in hypermesh , i exported it in acusolve and i ve done the simultation

    now i want to see the results in hyperview, in particular i need to know the LIFT DRAG and SIDE FROCE COEFFICIENTS .

    can anyone help me with some advices or similar case of study?

    another important question is..what kind of turbulence model can i use? i ve always used the SST one but i don t know if there is another good one

    thank you so much


  5. hello

    i have to do a case study about the external flow for a wing with acusolve

    i have the geometry and i created the domain now the next step is the mesh..but i don t know how it s work

    i try to explain..i saw tutorial where the surface mesh was created for the wing e and for the domain in hypermesh than export it into acusolve where the boundary condition are placed

    and then the 3d mesh was done..

    but why i need the 2d mesh for external flow? and..can i do the 3d mesh in hypermesh and then export it in acusolve?

    thx


  6. hello everybody,

    i created a cylindrical domain in hypermesh and i export it in .nas and i tried to open it in acusolve but it gives me the follow error

     

    Traceback (most recent call last):
      File "pnlFile.py", line 323, in importFile
      File "pnlWin.py", line 1446, 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 361, in loadGeomData
      File "pnlLoadGeom.py", line 1113, in readNastran
    PnlLoadGeomError: "Error from geometry reading module: <:'Error from geometry reading module: <no surfaces found in the nastran file> '> "

     

    what can i do?


  7. i  exported a file .nas from hypermesh

    i tried to import that file in acusolve but it gives me this kind of warning? what can i do?

     

     

    C:\Program Files\Altair\14.0\acusolve\win64\script\Console.zip\acuNastran.py:157: DeprecationWarning: raising a string exception is deprecated
    Traceback (most recent call last):
      File "pnlFile.py", line 323, in importFile
      File "pnlWin.py", line 1446, 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 361, in loadGeomData
      File "pnlLoadGeom.py", line 969, in readNastran
      File "acuNastran.py", line 114, in getData
      File "acuNastran.py", line 157, in setSrfs
      File "apuUtil.pxi", line 516, in acupu.invMap
    ERROR from acupu module: Src <0> not found 


  8. hi..i'm trying to follow an hyperworks tutorial called 'turbulent flow in a mixing elbow' but it's impossible to import the geometry with the extention .x_t

    in particular it gives me the seguent error:

     

    Traceback (most recent call last):
      File "pnlFile.py", line 323, in importFile
      File "pnlWin.py", line 1446, 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 741, in readCad
      File "pnlLoadGeom.py", line 1646, in saveGeomData
    PnlLoadGeomError: 'Error from geometry reading module: <error saving geometry files > '
    someone can help me?

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