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acupro

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acupro last won the day on February 14

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About acupro

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  1. acupro

    How to run Acusolve on Linux commands?

    You'll be better off using the acuSub command to submit through PBS. It will create the script for you and submit the job. See acuSub -h for usage and options. Again, you'll need to source the appropriate acusim.sh script first, in order to use acuSub. In your script, it looks like you want to use 24 cores from a single compute node. (select=1:ncpus=24). You don't need to include anything about mem. Then in your acuRun command, you don't need quotes around the name of the .inp file (and I suggest you not start the name of the .inp file with a number), then you have -nt 14. Let's say your input file is test_run1.inp instead. What about: $ALTAIR_HOME/ Acusolve/Linux64/bin/acuRun -inp test_run1.inp -np 24 -nt _auto -do all -pbs_attach -pbs Still - I suggest you try acuSub, and then look at the submit script it generates. acuSub -pb test_run1 -np 24 -ppn 24 -sched pbspro -pbs_attach again, assuming your inp file is test_run1.inp, you want to use 24 physical cores on a single compute node, and you're using the licensed pbs
  2. acupro

    How to run Acusolve on Linux commands?

    Right. You need to establish the AcuSolve environment. It looks like you're running bash. As explained in the HyperWorks Installagion Guide, you should include the following in your ~/.profile file source $INSTALL_DIR/altair/acusolve/linux64/script/acusim.sh $INSTALL_DIR is the chose installation directory. Then you can issue the acuRun command with options from your problem directory. (You can use which acuRun to make sure you've correctly established the environment.) You can also add that line to set the ALTAIR_LICENSE_PATH environment variable to your ~/.profile file. We typically use the local (in the problem directory) Acusim.cnf file to specify the problem name and other options.
  3. acupro

    How to run Acusolve on Linux commands?

    Please post either the Log file, or the actual error messages in the Log file. (Or is the above the entire contents of the Log file?) Have you contacted your local Altair support team?
  4. acupro

    problem when exporting to AcuConsole

    How are you trying to export the mesh from HM? Best I can suggest is to review the tutorial ACU-6100 that comes with the AcuSolve Help documentation. It covers a bit of meshing and preparing with HyperMesh. I do know you need to have visible the elements (volume/surfaces) you wish to export. You could also try meshing with AcuConsole if the geometry is clean/closed and requires no modification.
  5. acupro

    How to run Acusolve on Linux commands?

    Let's assume you've changed to the directory that contains the .inp file and MESH.DIR directory. acuRun -pb demo -inp t1.inp -np 4 should do it. In general, acuRun -h will give you complete set of options. You can also review the 'acuRun' section of the Programs Reference Manual.
  6. acupro

    Uknown error during solving in Flux 2D

    It looks like you submitted this to the AcuSolve forum instead of the Flux forum...
  7. acupro

    Oil flow simulation in rotating gearbox

    It's probably best if you contact your local Altair or Reseller support team. They can put you in touch with the appropriate nanoFluidX support staff.
  8. acupro

    Transcient response of delta pressure

    You may want to contact your local Altair support office. Or - you could upload the two .inp files here - the original with constant properties, plus the 'restart' with ideal gas. When you switch to ideal gas, what do you do with the temperature field? If you're not interested in the temperature field, you could also try isentropic density instead of ideal gas.
  9. acupro

    Transcient response of delta pressure

    Good idea to start from a steady, constant-properties solution. Make sure you use absolute pressure in your boundary conditions for both cases.
  10. acupro

    Transcient response of delta pressure

    Or at least use air properties that vary with absolute pressure - such as isentropic density - instead of constant density. You could also use ideal gas, where the density depends on absolute pressure AND temperature. There you'll have to include the temperature solve as well.
  11. acupro

    Animate water in AcuFieldView

    I think you'll create an isosurface of something like 'levelset', then use a value of 0.5. It will be something along those lines.
  12. acupro

    Error import model

    If you're doing geometry manipulations in HM, it's probably better to do at least the surface meshing there, then export Fluent/Nastran mesh to import to AcuConsole for the volume meshing. Or you could do the entire surface/volume meshing in HM. The parasolid export after manipulation in HM is not that robust. What is the source of the original CAD? Or - is it built entirely in HM? Also - that image above indicates a size of 1.7 km in X. Is that correct?
  13. acupro

    Error import model

    That message "There are zero region sets in the model" typically means there are no 'solid' bodies represented in the parasolid file. If the parasolid file definitely has 'solids' represented (which could also be the fluid volume, but from a solid modeler), there could be an issue with the CAD. If the file only has surfaces, you'll need to enable the 'Fill Voids' option on the import geometry panel. This will then create the volumes which are enclosed by surfaces, during the import process.
  14. acupro

    Compile the UDF

    Try just typing acuMakeDll and return, without adding "-src gravity.c" - and see which errors are returned. As mentioned, you do need to have a compiler installed. It seems Visual Studio Community is the latest free version from Microsoft.
  15. acupro

    Transient Heat Transfer [Acusolve]

    In AcuConsole, you can do this with 'Temperature initial condition type' set to 'Script'. Then select 'Open Text' for 'Temperature script' and use functions like 'if inVolume' to set the values for the different Volumes (element sets). You can also do this in the input file itself: NODAL_INITIAL_CONDITION( "temperature - body" ) { selection_type = element_set element_set = "body" variable = temperature type = constant constant_value = 273.0 satisfy_boundary_condition = off precedence = 1 }
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