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ppe1906

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Everything 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. hi Nguyen i m shareing to you my HM model. thank you so much for help. test_geom12.hm
  3. 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?
  4. hello everydoby, i need help to generate a 2d mesh for the shell of a race car and 3d mesh of the fluid domain. the problem is that the 2d mesh fails everytime (i don t know the reason) and i can t move on. i can give u the file if u can help me.
  5. hello everybody, i need to know if it's possibile to generate a mesh motion or 'dynamic' mesh using hypermesh. i need it for a fluid dynamics simulation. in particular i want that the mesh could follow the changing of the geometry and the fluid domain. thanks for help
  6. hello everybody, i need to plot in acusolve with acuprobe, the trend of drag coefficient as a function of the angle of attack what can i do?
  7. thank you for the help
  8. i resolved it i missed one thing in the function Get (x_traction)
  9. 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
  10. 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
  11. 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
  12. 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?
  13. if i couldn t find it.. do you know another source to take them?
  14. hello i need some tutorials about external flow, where can i found them? i know that in the installation folder should be tutorials like this ACU-2100: Turbulent Flow Over an Airfoil Using the SST Turbulence Model but in my folder there isn t anything like this can oyu help me? please
  15. i m starting to use acusolve and i ve done the installation on my pc.. so i m searching for tutorials for external flow but i didn t find anything i know that this kind of tutorials exist like ACU-2100: Turbulent Flow Over an Airfoil Using the SST Turbulence Model ACU-2200: Transition Flow over an Airfoil Using the SA Transition Models but i don t know how to find it please help
  16. i can t find these tutorials, i tried to open acusolve and go to the help page and i serch in the folder installation too, but nothing
  17. i tried to open the links but they doesn't work can u try to replace them?
  18. 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
  19. hello livillyle i really appreciated your information and this tutorial thank you so much
  20. thx for the replay but in this tutorial the results came from the virtual wind tunnel.. but i want to create the entire study in acusolve how can i setup all the conditions? i m looking for a basic tutorial for external flow
  21. i have to do a simulation in acusolve for external aerodynamic of a rear wing of a race car but i didn't find any tutorials of the argument does anyone know about basic tutorials on acusolve for external flow?
  22. yes sure.. but i was able to import the geometry changing the file in .sat
  23. 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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