if i have different dimension of geometry , can i have to change it on 0 folder?
@FoolishGamerYT8 ай бұрын
i followed her instruction but the blockmesh doesn't run on the PC, why is that?
@kekodosky20828 ай бұрын
best opemfoam vid i have seen so far
@nihalsai72899 ай бұрын
how can I give material properties to the imported geometry
@Nuno_Ponte10 ай бұрын
ok
@hackernik657211 ай бұрын
But how do you create the blockMeshDict file? I just don't understand that part
@MrRajabMrwass Жыл бұрын
The surfaceFeatureExtract utility has been superseded and replaced by the more general surfaceFeatures utility.
@MrRajabMrwass Жыл бұрын
surfaceFeatureExtract does not work anymore
@McRyach Жыл бұрын
I think the diagram of the Vertex order at 2:30 is wrong. I sketched it out from *blockMeshDict* of Lily's template and it looks exactly as the diagram shown in this tutorial . Which is different than the diagram shown at 2:30. www.wolfdynamics.com/wiki/meshing_OF_blockmesh.pdf
@dabarney2988 Жыл бұрын
Perfect length, perfect depth in a well structured form. Thank you Lily for the best 3D openFOAM beginner tutorial so far.
@Akshayoes Жыл бұрын
Very informative and thanks for all the ques posted and received answers
@gilverrosero943 Жыл бұрын
Hello Thank you for the video. There is valuable information but i have an issue into my terminal when i run surfaceFeatureExtract into preGeo. This says: bash: surfaceFeatureExtract: command not found. why is this error? Thank you for the information that you can give me!
@AY_Studios Жыл бұрын
can you explain how you set up the terminal to automatically start running openFoam?
@umka_story2 жыл бұрын
Great! Amazing dogs!
@frazze21132 жыл бұрын
I am having problems when trying to use SurfaceFeatureExtract. Is anyone else having the same problem?
@ash.d.writes2 жыл бұрын
From static bool Foam::entry::New(Foam::dictionary&, Foam::Istream&, Foam::entry::inputMode, int) in file db/dictionary/entry/entryIO.C at line 166. I got this error
@frazze21132 жыл бұрын
at 6:54 How did you get the quick command to show up in after you right clikced? :)
@igor_shepelev2 жыл бұрын
Thanks a lot! Just a couple of issues in preGeo folder files. 1) constant\triSurface\cylinder.STL > cylinder.stl 2) 0\omega - add closing bracket at line 49.
@giovannyaltamirano5511 Жыл бұрын
Most useful comment!
@ridhimabhardwaj78622 жыл бұрын
CFD with OpenFOAM workshop www.paanduv.com/page/workshops/PNDUVPG62253
@denislavzdravkov69793 жыл бұрын
Hi, I come to the point of surfaceFeaturExtract and I receive the following message in the terminal: --> FOAM FATAL ERROR: (openfoam-2012) No surfaces specified/found for entry: cylinder.stl From int main(int, char**) in file surfaceFeatureExtract.C at line 305. FOAM exiting Any idea what happens and how I could run it?
@raptormonkey2532 жыл бұрын
rename cylinder.STL to cylinder.stl, fixed the problem for me
@zirgo88663 жыл бұрын
you are awesome thanks a lot <3
@aimannorsham35573 жыл бұрын
How can I create other 3D geometry like square and then running this same simulation concept. can anyone help me out?
@aimannorsham35573 жыл бұрын
Hi, may I know how did you created the PreGeo folder? I am creating a 3d geometry of a square. However, I couldn't do the simulation in OpenFoam. Can you guide and teach me on that? Really need your help
@rahulnair23853 жыл бұрын
can i perform this tutorial with other geometry?? I am trying but its not excecuting surfaceFeatureExtract step
@editingstuff5753 жыл бұрын
allahına kurban Lily bacım
@antoine14073 жыл бұрын
Have I put both files in triSurface? Could I just put the .stl file?
@kenbryanfernandez24543 жыл бұрын
this is very helpful thanks
@johnnyzhang64413 жыл бұрын
Thank you! That is one of the best and simplest tutorials ever in YB. This one is really helpful to solve some simple geometry cases, thanks again!
@samuelreimer45903 жыл бұрын
Hi Lily, Thanks for the great tutorial! This helps a lot with figuring out how to set up my own case. One question though, opening paraview I see the mesh block but no cylinder. Looking through the other comments having this issue, I've changed to wireframe, unchecked skip 0, tried adding -overwrite to snappyHexMesh, but I'm still having no luck. Any ideas? Thanks! Edit: Figured it out, if anyone is having these issues make sure when you export your .stl that it exports in meters (same page as where you change to ASCII).
@Naturalbeautyadventure3 жыл бұрын
Thanks you its very good one
@manjunathshastry48533 жыл бұрын
Hello, I am getting this error. Could you please help me. Reading surfaceFeatureExtractDict --> FOAM FATAL ERROR: (openfoam-2012) No surfaces specified/found for entry: cylinder.stl From int main(int, char**) in file surfaceFeatureExtract.C at line 305. I'm stuck here :( . I even checked whether the cylinder file is in ascii format or binary. I saved it again in ascii format, but it still gives me the same error. Could you please let me know what to do.
@clemensjanzarik14732 ай бұрын
same here
@clemensjanzarik14732 ай бұрын
Figured out the issue though, if anyone else has this issue make sure the stl file being referenced is renamed "file.stl" rather than how it saves as "file.STL".
@Filipcorobivblenderi3 жыл бұрын
I think, we need more tutorials like this
@aykutgunhan4363 жыл бұрын
Thank you for the tutorial! I've a question about running surfacemeshextract. When i try to run this code, i got an error says: surfaceFeatureExtract surfaceFeatureExtract: symbol lookup error: surfaceFeatureExtract: undefined symbol: _ZN4Foam9UOPstream5writeERKNS_5tokenE I've been searching for a solution for the problem but i've got nothing, do you have any idea what this is about?
@antoine14073 жыл бұрын
@Killian Whyte Sir, I did as you said. I got: keyword surfaces is undefined in dictionary file: C:/Users/admin/Desktop/motorBike/system/surfaceFeaturesDict/motorBike.obj from line 20 to line 41. From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const in file db/dictionary/dictionary.C at line 799.
@georgeathanasopoulos35183 жыл бұрын
Thank you very much!!!
@44bgood3 жыл бұрын
Great explanation! But that copy-paste-rename-delete workflow needs to be automated or something.
@nazarinebeats55213 жыл бұрын
Hi I need help please, i want to simulate a vertical axis wind turbine that uses Magnus effect, basically rotating cylinders, how hard it is to adapt this tutorial to test the VAWT in openfoam. All I have so far is an assembly of the top section without the generator. Looking forward to your advice. Tim
@janzenlee2753 жыл бұрын
I imported my own geometry, but after excuted parafoam, I can't see it in paraview(Only a mesh cube I could see.) Could someone help me? Thanks
@kingl55193 жыл бұрын
I assume you ran blockMesh which is why you can see it on paraview. But did you also run snappyHexMesh before paraview too? If you did and that's not the issue, then it could be that you are viewing the block as a surface and your geometry is inside so you can't see it. Try changing the surface view to wireframe as in the video. Hope this helps.
@janzenlee2753 жыл бұрын
@@kingl5519 In fact I had ran snappyHexMesh and turn the view to wireframe. I'm also sure that the cube point coordinates had adjusted to cover my geometry completely. That's confusing.
@janzenlee2753 жыл бұрын
Ok, finally ,I find the solution, I should add -overwrite option to snappyHexMesh.
@oleksiyyefimenko32994 жыл бұрын
Thank you very much for presentation. It's very practical/ useful. Keep making research. stop splashing/eating during presentation!!! it's enrages! >/
@antonskyrda66454 жыл бұрын
really, it do not working with me. I have tryed many times and it should be some magic to work perectly in this video. GIVE UP
@marcind47954 жыл бұрын
Hi Lily, After simpleFoam I got such error: No MRF models present No finite volume options present Starting time loop streamLine streamlines: --> FOAM FATAL IO ERROR: keyword direction is undefined in dictionary "/home/marcin/OpenFOAM/marcin-7/run/PreGeo/system/controlDict.functions.streamlines" file: /home/marcin/OpenFOAM/marcin-7/run/PreGeo/system/controlDict.functions.streamlines from line 13 to line 20. From function const Foam::entry& Foam::dictionary::lookupEntry(const Foam::word&, bool, bool) const in file db/dictionary/dictionary.C at line 570. Do you know how to solve it? Thanks in advance.
@qzong36693 жыл бұрын
Hi Marcin, I’ve fixed this error, maybe caused by the different version. I comment out ”#includeFunc streamlines“ in system/controlDict. (Openfoam v6)
@The_Woof_Pack4 жыл бұрын
I would have been hugging my dogs!!
@The_Woof_Pack4 жыл бұрын
Racer 2 got put behind because his lead dogs kept wanting to bite the other dogs.
@The_Woof_Pack4 жыл бұрын
Throws off jacket to lighten the load!! Wow
@marcind47954 жыл бұрын
Thank you Lily!
@SabbirHassan881r4 жыл бұрын
Please create more of these videos.
@huskytrails85334 жыл бұрын
💯💯💯💯 What a rollercoaster !?
@BombermanOfComet4 жыл бұрын
Hello and thank you for this tutorial. I have an error message coming up, while trying to execute surfaceFeatureExtract which is looking like this: Create time Note: Feature line extraction only valid on closed manifold surfaces Reading surfaceFeatureExtractDict --> FOAM FATAL ERROR: No surfaces specified/found for entry: cylinder.STL From function int main(int, char**) in file surfaceFeatureExtract.C at line 307. FOAM exiting Do you have any idea how to solve this issue, please?
@ungedrageset4 жыл бұрын
Hi, have you found any answer to this question? I have the same error message.
@BombermanOfComet4 жыл бұрын
@@ungedrageset I have. The reason this command did not worked in my case was that i used OpenFOAM from openfoam.org at this time. And this variant did not had this command in its command folders. After downloading from openfoam.com, it worked. I know it sounds stupid, but in my case this was the solution.
@王冠驊-m5j Жыл бұрын
Make sure the stl file being referenced is renamed "file.stl" rather than how it saves as "file.STL".