Pulsing Inlet Velocity in OpenFOAM
2:32
Animating Assemblies in Blender
13:48
Пікірлер
@Radio_Flakes
@Radio_Flakes 2 күн бұрын
So, you need three programs to utilize openFoam. One to create the mesh, then import that into openFoam then import the results into parasolid? That is ridiculously convoluted.
@kushalbhuva2912
@kushalbhuva2912 5 күн бұрын
when i wrote fluentToMeshToFoam mesh.msh I get this error - cannot find file "/mnt/c/Run/rhoCentralFoam/custom/system/controlDict"
@markpalmquist
@markpalmquist 9 күн бұрын
I had predicted this the first time I saw the Cybertruck. Does Open Foam work for analysis of boat hulls too? How long does it take to learn how to use Open Foam?
@javid-cj9gw
@javid-cj9gw 11 күн бұрын
--> FOAM FATAL IO ERROR: Essential value for keyword 'field' not set In function entry: scalarTransport
@afchaine2773
@afchaine2773 13 күн бұрын
thanks bro, video bahi, I wish i could have the mesh and the geometry, because I don't have access to fluent
@choasisgoated
@choasisgoated 25 күн бұрын
Are you gonna do anymore cfd?
@PapotsGarage
@PapotsGarage Ай бұрын
Thank you !
@c0V3Ro
@c0V3Ro Ай бұрын
Nice! Thx! Is there a nice forum about Flow Simulation? Posted an issue on cfdonline but had no answer :(
@LoganAlexander-bx6te
@LoganAlexander-bx6te 2 ай бұрын
😮
@TheKyokus1997
@TheKyokus1997 2 ай бұрын
I think shape key is more eazy 😂
@cleisonarmandomanriqueagui9176
@cleisonarmandomanriqueagui9176 3 ай бұрын
Youre amazing
@cleisonarmandomanriqueagui9176
@cleisonarmandomanriqueagui9176 3 ай бұрын
Whats your hardware setup ?
@TheZeroapollo
@TheZeroapollo 3 ай бұрын
Hi, I just briefly checked the boundary conditions of your case file. I suggest you may try to use a Totalpressure condition for p at the inlet as well as Totaltemperature for T. I wouldn’t specify U. I’d rather use zero gradient or maybe a pressureinletoutlet condition. If the Mach Number at the throat of the nozzle is equal to one, which should be the case, then the mass flow and thus the velocity at the inlet is not independent of the Totalpressure and Totaltemperature. Therefore you shouldn’t fix it, instead let the solver figure it out. Otherwise you overspecify the problem and numerical errors, which differentiate your solution from the analytical one may lead to huge pain in the ass problems and unphysical solutions. I am currently working on a similar case. I am quite new to supersonic flow simulations and I am still learning, so there is no guarantee that this helps or works as expected, but it could be a more sensible solution for your boundary conditions. If I find the time I will try your case and check it out. ✌️
@lefonte8403
@lefonte8403 3 ай бұрын
Which effects are kept hidden if you had to simulate just the half of the domain?
@turbo8628
@turbo8628 3 ай бұрын
I was just looking to see if i could transfer models created in solidworks to blender. This is so much more. Thank you.
@padaddadada5417
@padaddadada5417 3 ай бұрын
Thank you for your video : I think you made a mistake at 2:18 when writing the parabolic pde : You replaced t by x in the left hand side of the equation.
@francescoberardinelli4118
@francescoberardinelli4118 4 ай бұрын
Nice video, which filter is applied on paraview for that cool postProcessing? Is it a clip by scalar or something like that?
@LorenzoTell
@LorenzoTell 4 ай бұрын
You just sound like "Decino"
@martinsaravia
@martinsaravia 4 ай бұрын
Super Nice, thanks for sharing. Can you tell me which visualization technique you use for the animation at 0:28 ? Thank you very much.
@IamShashi98
@IamShashi98 4 ай бұрын
I know it’s too late to ask but does topology matter in product animation , I mean the cad models here are not having correct polygons…I mean during render time does they pose an issue ? & thanks for you tutorial brother…
@徐晟-x6o
@徐晟-x6o 4 ай бұрын
@RichardMüller-h5o
@RichardMüller-h5o 5 ай бұрын
It's no openFoam tutorial if i need ansys for the mesh...
@nishadhooli5388
@nishadhooli5388 5 ай бұрын
One the Best tutorial among all the videos on openfoam , appreciated the work!
@CrimeWatchUSA
@CrimeWatchUSA 5 ай бұрын
Great thank you i need more!
@nikola.tesla.r.and.d.centre
@nikola.tesla.r.and.d.centre 5 ай бұрын
New subscriber here. Can we discuss a new test of the valve in open foam but with the valve installed in the pulse detonation chamber it was designed for that has a pulsed pressure higher that atmospheric? I’ve never seen the simulation being ran in the proper format for use of the invention. It will yield very different results!
@Stefano-ch9qx
@Stefano-ch9qx 6 ай бұрын
thanks for the tutorial, can you tell me which folders "0, constants, system" you used?
@jamesbuckle6077
@jamesbuckle6077 6 ай бұрын
Does the use of designmodeler add anything or is it just geometry creation. Us non commercial users are stuck with open source software
@AwestrikeFearofGods
@AwestrikeFearofGods 6 ай бұрын
So...tetrahedral mesh had 2.36x as many cells, 0.99x as many nodes, and 1.62x as many edges...as mixed mesh. That's a big deal if run duration was only 0.73x! Why isn't this common knowledge already? Good work! Did you run exactly 10,000 iterations for each case? It appears so from the charts, but it's hard to tell with a logarithmic domain and holes in the data. 2:11 On the right-hand chart, what the hell's going on with the y-axis? Did you round the values to the nearest tenth?
@AnujKumar-ln9qe
@AnujKumar-ln9qe 6 ай бұрын
Can you provide a link to the following design shown in video?
@zhezhe3351
@zhezhe3351 8 ай бұрын
Thanks for the video! There is one quick question, in ParaView GUI interface, the input parameter for gradient filter is scalar array, but it seems that field U is an array of vector (vx,vy,vz), how could we compute the gradient for it? Thanks!
@alexsfetcu946
@alexsfetcu946 8 ай бұрын
Thank you for the tutorial :) When i run your cybetruck simple foam project i get following error: --> foam fatal error: invalid wall function specification. Patch type for patch topX must be wall. Current patch type is patch. Do you know the cause of this ? Thank you so much for the reply
@alexsfetcu946
@alexsfetcu946 8 ай бұрын
edit: i found issue. Wrong boundary conditions, all types were selected as "patch". After correcting them to patch type "wall" and leaving only inlet and outlet as "patch" now simulation is running fine.
@strawberryyogurt7
@strawberryyogurt7 8 ай бұрын
Is there a reason for the way you apply mesh density?
@strawberryyogurt7
@strawberryyogurt7 8 ай бұрын
also great choice of music lol
@Cosmic_Taco
@Cosmic_Taco 8 ай бұрын
What a gem of a video - so interesting ❤
@MarcelNKemet
@MarcelNKemet 9 ай бұрын
I tried to reproduce the animation from the Github source code and couldnt't. The solvers complete but I can't get the volumetric rendering of the air velocity just like in the video. Do you have an additional paraview plugin setup?
@volodymyr3169
@volodymyr3169 9 ай бұрын
CL/CD of less than 4 is very weird at this Reynolds number
@jonathanclarke8907
@jonathanclarke8907 4 ай бұрын
I agree CL/CD of 4 is too low. This is clearly as a result of methods used. I have found similar results (~3.5)in OpenFOAM for a wing I have tested in reality and found to be about 20. Does anyone know why the value is so low?
@Fra123
@Fra123 9 ай бұрын
So interesting thank you
@thucpham4598
@thucpham4598 10 ай бұрын
thank you so much!!!
@akshay.kumar.k
@akshay.kumar.k 10 ай бұрын
Hello, Autodesk Inventor is saving or exporting the assembly as a single .stl file with joined bodies. It is not giving separate stl file for each body for the assembly. What to do?
@akshay.kumar.k
@akshay.kumar.k 10 ай бұрын
Ok I got the answer, for anyone wondering. In "Save As", click options and them export as multiple files.
@gottagowork
@gottagowork 8 ай бұрын
If the file comes as one or you have multibody parts in one of the files that you want to animate separately, hit Tab in Blender to enter edit mode with the part selected, hit p key and "separate as loose parts". Be sure to set the origin point of each part, but sometimes (say on a piston arm) another point may be more relevant. If a part need multiple points of rotation, parent the part to an empty and animate the empty (both selected, then ctrl+p). Doing some Blender tutorials would be nice too. This guy don't seem to address some of the smoothing issues that may require some cleaning up of the imported geometry.
@tobiaskosina1694
@tobiaskosina1694 10 ай бұрын
Thats really good man thanks a lot. This video had more information than most of the proffesional made videos about aerodynamics
@Shashidhar0378
@Shashidhar0378 10 ай бұрын
Hi, I am Shashidhar, I want to create an animated video in the blender of an assembly. But I am facing a problem, when I put a camera and press zero my object is not visible. Can you please help me out
@markotrieste
@markotrieste 10 ай бұрын
I love science. Just imagine how knowledgeable those scientists were... they've managed to put a paper plane in the water without dissolving it!
@cleison-em7bk
@cleison-em7bk 10 ай бұрын
Some typos ...
@zakaroonetwork777
@zakaroonetwork777 11 ай бұрын
Honestly. Just Talk like your normal self. Instead of poorly reading an overly done up script.
@zakaroonetwork777
@zakaroonetwork777 11 ай бұрын
How do you get Solidworks? Pirate Bay is no more? What torrent server do you recommend?
@zakaroonetwork777
@zakaroonetwork777 11 ай бұрын
What? How could Bender Not export Video files?
@gottagowork
@gottagowork 8 ай бұрын
It can. If you do, you'll quickly learn why you shouldn't. Imagine a crash/blackout mid render that can take hours to days, or figuring out in the end the output settings were wrong. It's better to assemble the frames at the end, Blender can do this too.
@zakaroonetwork777
@zakaroonetwork777 11 ай бұрын
Who is the Chill Background Music?
@youngbaepark7481
@youngbaepark7481 11 ай бұрын
Very Informative video. Great job and Thanks for sharing
@mayssayasmina2072
@mayssayasmina2072 11 ай бұрын
Hi gréât job, Can we use sketchup models, and how we van show thé animation indice unreal engine, if its possible, and van we use a big model as e parc of city with terrain (topographic as montzin)? Thank you
@raiboku-n5b
@raiboku-n5b 11 ай бұрын
how do you create the files in 0, constant, and system folder?
@Darth2901
@Darth2901 11 ай бұрын
As far as my understanding goes, the mesh you created in Ansys was a custom one. How did you get the 0, constant, and system files for the simulation to run? The rest of the video is very informative, so thanks.
@raiboku-n5b
@raiboku-n5b 11 ай бұрын
did you find the solution to this?
@POTATOMAN-gi9ce
@POTATOMAN-gi9ce 7 ай бұрын
@@raiboku-n5b did you get it?