Trust me when I say that I tried to make this installation the last 5 months, you save my live, I really appreciate your job!!! Would you make some videos explaining about the usage Ligggths commands that are inside the Ligggths script of the coupling Simulations??
@engineerdo6568
3 жыл бұрын
Hey Mateo, great that we could help you. We already have videos on liggghts, openFoam and the coupling but there is more comming up. You also can get a personal training if you wish.
@ashutoshpriyadarsan9368
2 жыл бұрын
Excellent instructions!! But I think what you meant was that the changes have to be made in decomposeParDict instead of controlDict.
@vivio8399
3 жыл бұрын
Thanks for the great input!
@satchitnagpal7859
3 жыл бұрын
I needed this so badly!
@engineerdo6568
3 жыл бұрын
Good to hear, that we could help
@satchitnagpal7859
3 жыл бұрын
@@engineerdo6568 while compiling CFDEM, I'm getting "Segmentation fault (core dumped)".
@midhunr3176
3 жыл бұрын
awesome !! can you please provide a tutorial on effect of vibrator on hopper with liggghts
@MichaQun
Жыл бұрын
Hi, thanks for your videos they really help me understanding dem CFD coupling. How would you model air resistance when filling a glass cylinder with small diameter and large height. How should I define the CFD model ? I want the particles to exhibit the upwards airstream when the glass is being filled.
@engineerdo6568
11 ай бұрын
You can just use the example with the fluidised bed. I also made a video course where I explained how to model the interaction. However, I think the fluidised bed is very close to your application and just needs a geometrical adjustment
@yujiawei1590
3 жыл бұрын
Hi, Thank you for this comprehensive guide. Is this possible to model the particles floating at the air-water interface using this coupling framework? for example, any chance to merge the DEM solver and interFoam solver? Much appreciate your response.
@mohamedabdelmoula7659
3 жыл бұрын
Thank you please for this nice video...........I have a question, Can couple Ansys fluent Cfd software with LIGGGHTS?
@user-hs3dg8jy3t
2 жыл бұрын
Legend! Do you think this could be used to model microparticles being injected into the bloodstream? Would there be a way for the microparticles of set size to collide with the walls and each other?
@engineerdo6568
2 жыл бұрын
Sure Andrew, that will work no question.
@ferencsafranyik619
3 жыл бұрын
Hi, Congratulations for your work, it is very impressive and high-end! In the video you mentioned, number of CPUs should change also in /CFD/system/ControlDict file, however I could run the simulation on different number of CPUs when I modified the /CFD/system/decomposeParDict file. Maybe I downloaded a wrong case? Is it possible to use HELYX-OS with this installation for preparing the CFD case? In your previous video HELYX GUI was used for the OpenFoam, which is very cool, but I found that, it is working only with OpenFoamv4.1. Do you know any possible solution for using OpenFoam with graphical interface based on this installation? Thanks, Feri
@engineerdo6568
3 жыл бұрын
Hey Feri, Helyx should work fine with OpenFoam 5.x
@felipeoliveirabasso4214
Жыл бұрын
Hello everyone, I´m trying to install the CFD-DEM Liggghts and OpenFoam according to the tutorial. However, the LPP file is no longer available in the CFDEMproject repository. How should I proceed with the installation? Could someone help me with this issue? Is this LPP file necessary to run cases in CFD-DEM? Thank you very much for your attention. Regards
@NhanNguyen-yf4sk
Жыл бұрын
Hello, have you resolved this error yet?
@Kirankpk
11 ай бұрын
Yes, any updates on this?
@MarkDunn-v9v
8 ай бұрын
Any updates? Please help
@saguaizhan2529
7 ай бұрын
Hello! Did anyone succeeded in solving this issue?
@govindnama3918
7 ай бұрын
Did anyone update this ? I am also facing the same issues.
@007aha1
3 жыл бұрын
was studierst oder arbeitest du? für fall 2: was hast du studiert?
@engineerdo6568
3 жыл бұрын
I studied mechanical engineering and applied mechanics. After this I did a PhD in mechanical engineering in the field of bulk material handling.
@007aha1
3 жыл бұрын
@@engineerdo6568 wow and now you are working as?
@ingenieriapasoapaso310
Жыл бұрын
Wie wäre es mit einem guten Tag, hören Sie eine Frage, wie lange dauert die Simulation und können Sie die Eigenschaften Ihrer Ausrüstung mitteilen, beispielsweise den Prozessortyp und den Arbeitsspeicher. Danke für Ihre Aufmerksamkeit, passen Sie auf sich auf
@samuelmelian5645
3 жыл бұрын
Hello, what i need if i want to create wave breaks and study the wave, change the floor, create tubes...
@engineerdo6568
3 жыл бұрын
Hey Samuel, probably only openFoam. I think particles will not play a significant role in this.
@samuelmelian5645
3 жыл бұрын
@@engineerdo6568 Thanks you very much.
@subinath6593
2 жыл бұрын
Have followed each and every step but still facing problem in compilation. After giving the command cfdemCompCFDEMall, it is showing that compilation is done and there is no error. But there are lines in the terminal like "could not open file omp.h for source file cfdemPostproc.C due to No such file or directory" and several other lines like this. Have also check the log files created, these lines are present. I think the solver, utilities are not compiled successfully. Please provide a solution to this problem.
@kesleysantos3384
3 жыл бұрын
Greetings, Do I have to reinstal OpenFoam even If I already have the software instaled?
@engineerdo6568
3 жыл бұрын
Hey Kesley, I think you have to recompile it, if you already have the right version downloaded. An you have to make links to the coupling version as discripted.
@rauzsha
3 жыл бұрын
I am trying to install the open foam as described by you. The server is connecting, receiving the errors: request timed out and connection refused. The intent working with good speed. Could you please help me?
@engineerdo6568
3 жыл бұрын
Have you checked you fire wall? Sometimes its is blocked. Give it a try
@rauzsha
3 жыл бұрын
@@engineerdo6568 what I need to do with the firewall?
@jagadeeswarivanam735
3 жыл бұрын
FOAM Warning : From function int main(int, char**) in file reconstructPar.C at line 256 No times selected Can you please tell me how to solve this problem??
@prashant.p
Жыл бұрын
I am also having the same issue. Did you find any solution. Please reply.
@jirayutsudsamerjai3762
Жыл бұрын
Did you find a solution?
@jairrangel93
Жыл бұрын
Has anyone solved this issue?
@engineerdo6568
Жыл бұрын
This message just tells you that the reconstruction of the multi-core results was not successful. I guess that this message was generated after a crash in the simulation due to a different reason. Please check above in the print out of you shell window if there is something else. Just from this, it is difficult to find the solution to your problem
@jairrangel93
Жыл бұрын
@@engineerdo6568 In my case the terminal says: There are not enough slots available in the system to satisfy the 12 slots that were requested by the application: cfdemSolverPiso I have an AMD Ryzen 5 5500U with Radeon Graphics. 1 physical processor; 6 cores; 12 threads
@christianh.salinas9034
3 жыл бұрын
hello again, thank you very much for sharing this video tutorial. I re-reinstalled the CFDEM package to see if it could fix my problem with the ./runMe.sh but the problem persists on the first command line cp: cannot stat 'S_con.stl': No such file or directory /home/chrisshunterx/ChrissH/Excavator/parCFDDEMrun.sh: line 4: /home/vc-a/dem/.bashrc: No such file or directory and this as the last message -> FOAM Warning: From function int main (int, char **) in file reconstructPar.C at line 256 I understand that you are not obliged to provide me with a solution to my problem, since in the tutorial you run it correctly, but I would really be more than grateful if you could give me a little guidance. Thank you for your videos and for supporting your community by sharing your knowledge. Greetings.
@priyanshugupta5944
2 жыл бұрын
Hello, Did you manage to solve this issue?
@MM-cp4ls
Жыл бұрын
@@priyanshugupta5944 I did the following and it ran Ok (Good luck!) : Engineerdo/Excavator/CFD/system/decomposeParDict and changed the original content in the file to be: numberOfSubdomains 4; %here changes from 12 to 4 method simple; simpleCoeffs { n ( 4 1 1); %here changes from (4 3 1) to (4 1 1), because 4x3 means 12 processors, 4x1 means 4 processors delta 0.001; } hierarchicalCoeffs { n ( 4 1 1 ); %here changes from (4 3 1) to (4 1 1), because 4x3 means 12 processors, 4x1 means 4 processors delta 0.001; order xyz; }
@MM-cp4ls
Жыл бұрын
I did the following and it ran Ok (Good luck!) : Engineerdo/Excavator/CFD/system/decomposeParDict and changed the original content in the file to be: numberOfSubdomains 4; %here changes from 12 to 4 method simple; simpleCoeffs { n ( 4 1 1); %here changes from (4 3 1) to (4 1 1), because 4x3 means 12 processors, 4x1 means 4 processors delta 0.001; } hierarchicalCoeffs { n ( 4 1 1 ); %here changes from (4 3 1) to (4 1 1), because 4x3 means 12 processors, 4x1 means 4 processors delta 0.001; order xyz; }
@mwont
Жыл бұрын
@@MM-cp4ls Thank you. This solves the issue with changing 12 processors to 4.
@bayrontorres3926
Жыл бұрын
Hello, thank you for your tutorial. I have been performing the installation from the Windows Subsystem for Linux (WSL). However, when I reach the modification of bashrc (in the command: gedit ~/.bashrc), I see several messages: (gedit:26448): Gdk-WARNING **: 21:59:28.331: Settings portal not found: Could not connect: No such file or directory (gedit:26448): IBUS-WARNING **: 21:59:28.556: Failed to mkdir /root/snap/gedit/674/.config/ibus/bus: Not a directory (gedit:26448): dconf-WARNING **: 21:59:28.838: failed to commit changes to dconf: Could not connect: No such file or directory. Despite this, it opens bash and allows me to insert the lines: export WM_NCOMPPROCS=8 source $home/OpenFOAM/OpenFOAM-5.x/etc/bashrc. Then, when I insert the line of code: source ~/.bashrc I get No such file or directory. By the way, during the tutorial I had to install gedit with: snap install gedit I appreciate your help in resolving this issue.
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