Engineering talks
Engineering talks
  • Видео 3
  • Просмотров 56 969
OpenFOAM blockMesh and SnappyHexMesh using geometry from FreeCAD- FIlling water tank
Hello everyone,
Welcome back!
In this tutorial, I explained how to create a mesh for any complicated geometry with the help of blockMesh and snappyHexMesh utility in OpenFOAM. For creating the geometry, I used a free source software called FreeCAD. You need to save all the patches (faces) and the entire geometry after you create your geometry using FreeCAD. Run surfaceFeatureExtract only for face .stl files and extract those features for snappyHexMeshing.
This tutorial gives you a brief insight into creating mesh for any geometries using geometries created using FreeCAD. Any CAD software will solve the purpose but make sure it can export files in .stl format.
For more detailed information reg...
Просмотров: 25 000

Видео

Sample input/output/OpenFOAM/writing specified fields/writeControl/writeObjects/controlDict function
Просмотров 4,3 тыс.4 года назад
Hello Viewers, This small tutorial is mainly for writing specified variables or fields which is interest in OpenFOAM. Basically, you need to keep the writeInterval in controlDict to higher value which is followed by adding writeObject function in function subdictionary in ControlDict.I checked this with OpenFOAM 4.0, OpenFOAM 5.0, and OpenFOAM 6, You can check it with your OpenFOAM version. I h...
snappyHexMesh tutorial for beginners- Flow past objects
Просмотров 28 тыс.4 года назад
Hello all!!! In this tutorial, I briefly explained how to use snappyHexMeshing in OpenFOAM. I also briefly discussed how to make your models with FreeCAD (Free open-source software) for making your object file and export it to OpenFOAM for meshing. This tutorial is mainly for beginners. Screencast recorded in Ubuntu 16.04 with KAZAM. I am thankful to OpenFOAM, FreeCAD, and MeshLab community.

Комментарии

  • @freemanmeno2709
    @freemanmeno2709 5 месяцев назад

    Great tutorial ! I recommend

  • @johannesconradie1276
    @johannesconradie1276 6 месяцев назад

    Good video, thank you!

  • @thucpham4598
    @thucpham4598 6 месяцев назад

    Thank you for your video. I tried but when I ran openfoam, the position of cylinder was different from in freecad. Do you know why?

  • @architsaxen
    @architsaxen 8 месяцев назад

    Can we also determine the internal volume of bottle via cfd?

  • @AyobamiOni
    @AyobamiOni 10 месяцев назад

    Thank you so much for this video. Please kindly help with the case file.

  • @HVACtuner
    @HVACtuner 11 месяцев назад

    Wow! How do you get that "Duplicate subshape" button? :O:O

  • @chloealexisharris602
    @chloealexisharris602 11 месяцев назад

    Very good tutorial. Thanks!

  • @aryatuhaprosper6896
    @aryatuhaprosper6896 Год назад

    I tried to follow every step but at the end i could get the same flow. How possible can i make it. Otherwise, I appreciate for the efforts

  • @raihanpahlevi6870
    @raihanpahlevi6870 Год назад

    how to name the wall there is no duplicate subshape in my freecad

  • @hebaalaaeldin2596
    @hebaalaaeldin2596 Год назад

    That was very helpful, Thank you!

  • @bhaumikdave4187
    @bhaumikdave4187 Год назад

    Thanks and this is a nice explanation of how to do things with Openfoam. To load paraview with openfoam, I use parafoam.

  • @gilverrosero943
    @gilverrosero943 Год назад

    Thank you for this informative video. I have a question. where can i obtain the surfaceFeatureExtract file? because I made this file into Notepad but the blueCDF terminal say surfaceFeatureExtract: is not found. it is importan to say that i am using w10.

  • @Catloverss95
    @Catloverss95 Год назад

    Create an unstructured mesh of Gable low-rise building (Convert to Polyhedral mesh) ruclips.net/video/UFW-ISTEHq0/видео.html

  • @Charitha870620
    @Charitha870620 Год назад

    Thank you very much for your kind explenation.

  • @SamGarfield1
    @SamGarfield1 Год назад

    It would be helpful to have a link to the case files or instructions on where to get them. Are they from a tutorial case or what?

  • @TopCornerFacts
    @TopCornerFacts 2 года назад

    Please make a tutorial on using sHM with reactingParcelFilmFoam solver, thank you!

  • @luisarmandobispo5142
    @luisarmandobispo5142 2 года назад

    Hi! Can you show the result of the command checkMesh -allTopology -allGeometry?

  • @TopCornerFacts
    @TopCornerFacts 2 года назад

    Thank you for the nice tutorial. May I ask you to make a tutorial on yPlus calculation and how to monitor it like when and where to check it for example in an air jet impingement case on a flat plate?

  • @momosh59
    @momosh59 2 года назад

    Sir, thanks for your great tutorial. Could you please the files?

  • @AmolSampatraoRamteke
    @AmolSampatraoRamteke 2 года назад

    Absolutely amazing .... keep on creating new videos.

  • @murchanaab
    @murchanaab 2 года назад

    What type of mesh is created by SnappyHexMesh? For example.. Polyhedral, tetrahedral etc?

  • @cartoonsindia4072
    @cartoonsindia4072 2 года назад

    hai, i am started to learn the openFOAM, I am following your videos and getting error while giving blockMesh command (Symbol Lockup error : libdecompositionmethods.so : undefined symbol :ZNK4Foam11regI0ObjectENS_.......like this). please solve my problem

  • @turbochargersutututu
    @turbochargersutututu 2 года назад

    How do I add inflation layers to this mesh, to account for reasonable y+

  • @scooter39045
    @scooter39045 2 года назад

    Hello, I am creating a similar model to your tank model. I am trying to model an ancient clock. Do you have a GitHub with your files that I may review? This is my first time modelling in openfoam and I think I need more help. Thank you!

  • @ujjwalchetan4907
    @ujjwalchetan4907 2 года назад

    Awesome tutorial bro. Thanks a lot. I needed this only.

  • @simonshayan2032
    @simonshayan2032 3 года назад

    Hello Sir, thank you for the nice tut. I have a question about the setFieldDict. How i deal with it? Because i have no waterblockregion i want to define right? But when i only set air in my region, i become a error message region not found. Best regards.

  • @danielmolina7540
    @danielmolina7540 3 года назад

    Great video. Do you mind posting the files used somewhere so that I may try to see what is wrong with my setup? I keep on receiving this error from snappyHexMesh: Reading refinement surfaces. --> FOAM FATAL ERROR: Not implemented From function virtual Foam::Istream& Foam::ITstream::read(char*, std::streamsize) in file db/IOstreams/Tstreams/ITstream.C at line 159. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::ITstream::read(char*, long) at ??:? #3 Foam::Istream& Foam::operator>><int, 2u>(Foam::Istream&, Foam::FixedList<int, 2u>&) at ??:? #4 Foam::refinementSurfaces::refinementSurfaces(Foam::searchableSurfaces const&, Foam::dictionary const&, int) at ??:? #5 ? at ??:? #6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #7 ? at ??:? Aborted (core dumped)

  • @xxxx724
    @xxxx724 3 года назад

    the most fool tutorial that i meet and it makes me want to hit my screen. damn!

  • @hellsing48
    @hellsing48 3 года назад

    I can't tick off the Binary Encoding in MeshLab. Why is that?

    • @hellsing48
      @hellsing48 3 года назад

      To answer my own question... It is possible to export ascii stl file directly from FreeCAD. If you go to Mesh Design wb > Meshes > Create mesh from shape... ; Export mesh to file > choose ascii stl format

  • @magalycusipumaayuque5829
    @magalycusipumaayuque5829 3 года назад

    Thank you for the tutorial is very helpful. I am a new user in OF. Could you share with me a SURFACEFEATUREEXTRACTDICT file, please? I did not find it in tutorials files. Thank you in advance

  • @supernice1977JeffLee
    @supernice1977JeffLee 3 года назад

    Great tutorial! I am relatively new to OF, so I watched so many OF tutorials on RUclips. Your video is one of the best, and I have learned so much from it.

  • @aero_cats
    @aero_cats 3 года назад

    Thank you for the tutorial, but I missed some info regarding the "fvSolution", "fvSchemes", "momentumTransport", and "transportProperties" syntax. Without knowing their syntax inside, it seems like I can't run the "interFoam" command. Glad if you can provide the case file in github or other cloud service. Thanks!

  • @aero_cats
    @aero_cats 3 года назад

    Great tutorial! Hope to see your further simulations, keep uploading!

  • @eda364
    @eda364 3 года назад

    Hi. When I use the command surfaceFeatureExtract appaers the following error: Reading surfaceFeatureExtractDict --> FOAM FATAL ERROR: (openfoam-2012) No surfaces specified/found for entry: cube.stl From int main(int, char**) in file surfaceFeatureExtract.C at line 305. FOAM exiting I am not sure where the error come from, since the name of the file is the same as the name in the triSurface folder.

  • @infantberwin8842
    @infantberwin8842 3 года назад

    Hi Is there any tutorial help page available to learn open foam

  • @sohrabaskarli5679
    @sohrabaskarli5679 3 года назад

    where can we find the related files shown in the video?

  • @sohrabaskarli5679
    @sohrabaskarli5679 3 года назад

    hello, one thing i don't understand is that you create inlet, outlet, wall files when you draw it. I have downloaded stl file from the internet which is only total volume (3-D distillation column). How can I still specify inlet, outlet, walls for it?

  • @Classmates12
    @Classmates12 3 года назад

    sir how to get these directry?

  • @johnramirez6906
    @johnramirez6906 3 года назад

    Please review your video before. Remove unnesesary super-mega detailed explanation. And focus on the important and necesary steps.

    • @GPonnoos
      @GPonnoos 3 года назад

      see some people need super mega explanation, not everyone is super easy with the basics.

    • @samikmaiti9339
      @samikmaiti9339 2 года назад

      😃 this is an Indian style of explanation; we need that detailed explanation who is in beginner lever.

    • @MrRevancheRay
      @MrRevancheRay 2 года назад

      eventhough I am not a real beginner, I still prefere detailed explanation instead of those fast result oriented vids. They won't help much

  • @sachithperera4626
    @sachithperera4626 3 года назад

    Great job. Nailed it.

  • @sriharisha251
    @sriharisha251 3 года назад

    Make more please. Your clarity is amazing.

  • @danabaro1458
    @danabaro1458 3 года назад

    Hi, thank you for this video, but can you explain how you created the "d" folder and how you got it to contain the "0", the "constant" and the "system" folder will all the things inside them? (minute 14:19)

  • @sudipvikramadhikari9355
    @sudipvikramadhikari9355 3 года назад

    What is the name of the solver u are using?

  • @vikrantkamble4948
    @vikrantkamble4948 3 года назад

    Amazing video. But I have a problem with the duplicate subsection. I cannot find it in the dropdown menu. Can you please help me with it? Thank you in advance.

    • @hilaalalam
      @hilaalalam 3 года назад

      If you are using FreeCAD new version like 0.19, then you go to Part--> Create a Copy -->Create a Shape Element Copy. This will solve your problem

    • @vikrantkamble4948
      @vikrantkamble4948 3 года назад

      @@hilaalalam thank you

    • @dr.aliayyed7948
      @dr.aliayyed7948 3 года назад

      @@hilaalalam Thanks bro

    • @onuraydn7065
      @onuraydn7065 3 года назад

      rightclick-link action and make sublink.

    • @michapilch9432
      @michapilch9432 7 месяцев назад

      @@hilaalalam Thank you

  • @jordandenev5305
    @jordandenev5305 3 года назад

    Well done - you really concentrated on the important steps. The video is quite usefull for my beginner-level.

  • @oleksiyyefimenko3299
    @oleksiyyefimenko3299 3 года назад

    Thank you so much ! Useful. Concrete. Solid.

  • @aimanshuhaimi1068
    @aimanshuhaimi1068 3 года назад

    Hi. May I know, how do you create the files as shown in the video? I managed to install the OpenFOAM but seems like I can't find those files.

    • @ShyamUHS
      @ShyamUHS 3 года назад

      You can find those files in tutorial folder in openfoam installation directory, select the files according to our case

  • @MarkYobb
    @MarkYobb 3 года назад

    Very helpful.

  • @danatothova8728
    @danatothova8728 3 года назад

    Thank you for the video, it is great. Do you know what could be wrong with my mesh? I am creating a mesh of a rectangular tank with a pipe. I get a mesh at the walls of the tank and at the walls of the pipe, but there is no internal mesh. Thanks!

    • @engineeringtalks7727
      @engineeringtalks7727 3 года назад

      It seems to be a issue with viewing in paraview if I am correct. You can try checking the mesh by using volume instead of surface. The other issue may be with locationInMesh.. check that one as well

  • @salmanktk5164
    @salmanktk5164 3 года назад

    I have a small problem about openfoam installation