Thank You, Thank You! (dank sehr)! Your deliberate explanation and walk through of the mesh refinement tool was extremely helpful. By the way everything works perfectly with FreeCAD 20.2 and the latest CfdOF. If you have time please continue adding to your tutorial list. Your tutorial style is and explanations are terrific.
@nicolomattiarossi582 жыл бұрын
Thank you very much!
@HaniYousef10 ай бұрын
Thank you, Techbernd5535, for providing a comprehensive explanation. When the force acting on the fluid is at the outlet, what would the parameters for the Inlet and Outlet be? To put it simply, there is a pump at the outlet that pulls the fluid through the inlet.
@techbernd553510 ай бұрын
In contrast to solids, liquid can only flow under pressure, so there is no pulling. To be more precise, this tutorial actually only calculates the effect of a pressure difference between the inlet and outlet. As long as there is higher pressure at the inlet than at the outlet, the medium flows towards the outlet.
@zmedford111 ай бұрын
Thanks for this series! It is helping me learn a lot. I believe I followed the setup that is shown in the video, but my output doesn't match. I found that in fvSolution, the criteria for the residuals was 1E-3 instead of 1E-4, and changed that, but I still don't get anything that looks like the video. Are there other settings that need to be changed?
@techbernd553511 ай бұрын
Hi @zmedford1, thank you for your question. Probably, my answer in the FreeCad-Forum might help you: forum.freecad.org/viewtopic.php?p=731746#p731746
@TheWookiestyle2 жыл бұрын
Hi im trying to do an analysis of a propeller design I have made. What I have done is i just made it with 3D printers and my results are pretty interesting. However I'm not real savy with a flow analysis at all. I would be willing to provide my files. Would you be willing to make a tutorial using my stuff?
@multiforc271 Жыл бұрын
hi there is an option in ansys, Symetry, to cut the shape/mesh into the parts, when we know that the behavior is the same and symetric. this way we can reduce the amount of processing. is there similar option in FreeCAD, OpenFOAM, Elmer or calculix ?
@techbernd5535 Жыл бұрын
Hi multiforc271, in FreeCad CfdOf there is a symmetric boundary condition (BC). I explained this boundary condition in my first video tutorial: kzbin.info/www/bejne/hYSXpJWYd9mNi9k. Please also take a look in the discussion below by video tutorial. Please be aware that my video tutorials are about FreeCad CfdOf, this is a workbench for FreeCad that generates the input files for OpenFoam. Elmer, Calculix and Z88 are part of the FEM-Workbench of FreeCad. About this workbench, you will please find many other tutorials.
@multiforc271 Жыл бұрын
@@techbernd5535 Yes, I have seen your other video, but the symmetry in that case, was two mirror walls. Can i use the same command, when i want to divide a rectangle into 4 ? Ja, ich habe dein anderes Video gesehen, aber die Symmetrie war in diesem Fall zwei Spiegelwände. Kann ich denselben Befehl verwenden, wenn ich ein Rechteck in 4 teilen möchte?
@techbernd5535 Жыл бұрын
@@multiforc271 Thank you very much for your questions. I think that youtube comments are not the right medium for such a discussion, for this reason, I gave you the answer in the FreeCad-Forum. You will please find my answer in the FreeCad-Forum here: forum.freecad.org/viewtopic.php?t=77414
@rbp365 Жыл бұрын
feels like I'm missing 6 years of physics from elementary + middle school and a couple of more years from university :D