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I have trouble to finish your tutorial - Fatal Errors appear. (rhoMin and rhoMax are no longer supported.) OpenFoam 11 - kubuntu 22.04 LTS "Create time Create mesh for time = 0 Selecting solver incompressibleFluid [1] [1] [1] --> FOAM FATAL IO ERROR: [1] Pressure limits should now be specified in fvConstraints: limitp { type limitPressure; } rhoMin and rhoMax are no longer supported. [1] [1] [1] file: IOstream/PIMPLE from line 0 to line 0. [1] [1] From function Foam::pressureReference::pressureReference(const volScalarField&, const volScalarField&, const Foam::dictionary&, bool) [1] in file cfdTools/general/pressureReference/pressureReference.C at line 59. [1] FOAM parallel run exiting [1] [0] [0] [0] --> FOAM FATAL IO ERROR: [0] Pressure limits should now be specified in fvConstraints: limitp { type limitPressure; } rhoMin and rhoMax are no longer supported. [0] [0] [0] file: /home/xxx/FOAM_RUN/Venturi/system/fvSolution/PIMPLE from line 16 to line 23. [0] [0] From function Foam::pressureReference::pressureReference(const volScalarField&, const volScalarField&, const Foam::dictionary&, bool) [0] in file cfdTools/general/pressureReference/pressureReference.C at line 59. [0] FOAM parallel run exiting [0] -------------------------------------------------------------------------- MPI_ABORT was invoked on rank 1 in communicator MPI COMMUNICATOR 3 SPLIT FROM 0 with errorcode 1. NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes. You may or may not see output from other processes, depending on exactly when Open MPI kills them. -------------------------------------------------------------------------- [XXX] 1 more process has sent help message help-mpi-api.txt / mpi-abort [XXX] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages " Any advice?

hi i have a problem while starting the simulation and it is related to the number of processors in files. how to reduce number of processors from 12 to 4? i have tried but still error thanks

can you please explain about setting number of processors for less than 12 processors? i cant run the simulation thank you

The laminar to turbulent transition at ~2300 is for flow in pipes, on a flat plate it is ~10^5.

hey after the chmod 777 comand I got this error: /home/senamoises/FluidisedBed/parCFDDEMrun.sh: line 26: parCFDDEMrun: command not found can you help me? thanks

I m getting this error, "mpirun was unable to find the specified executable file, and therefore did not launch the job. This error was first reported for process rank 0; it may have occurred for other processes as well." Could any one help me resolve this please.

I'm having that problem I get to much sand back after 110 tons per hour and overloading my motor

how to reconstructPar the multi processor data to visualise in paraview

how can i assign suction boundary in the outlets? Thanks.

Hi. Is it possible to contact you privately to see if you’re interested in trying something to do with racing cars? Ben

im not ssure helyx is free anymore i cant seem to get a hold of it without paying 2k

Dear EngineerDo, Is it possible to find the input of this simulation somewhere? Thanks a lot!

What if the buckets were not fixed but instead a swing and the contents were tipped?

Can I use the same procedure to simulate the binder jetting process?

Exactly what i was looking for

Thank you for the simulation. but it seems it has a specific agenda that is to prove Elon Musk wrong. Firstly Elon Musk never said CT drag coefficient is 0.3. He said: "with significant effort, the CT MIGHT achieve a drag coef. of 0.3". And he said that several years ago. Please be fair. Secondly, it would be very useful if you used the same simulation software to calculate the Cd for Ford F-150 Lightning, and a couple of other ICE trucks. Finally the Cd of CT truck reported elsewhere appears to be 0.36 and that value is obtained in a real wind tunnel. Ford F150 lightning has a reported wind tunnel Cd of 0.44.

could you please send me a link I can download dem software

could you please tell me which software used for making this video?.................................................................................................................

Dear engineerdo, I would like to do a simulation similar to yours, however my drum has smaller dimensions. When replacing the geometry files and applying the input from your model, the particles behave in a strange way, as if gravity were not acting, could you help me?

if you give me your gmail i can share my work I completed silo and air blower also make simulation but I cant give inside maize

could you please help me ...... I want to make grain like maize in solidworks also create simulation is it possible.?

Excellent faculty & i really appreciate whole heartiest such a great tech hero revolutionary faculty it is gr88 german scientist

Hello, I wanted to know if you can do a step-by-step tutorial on how to do the simulation since I am interested in developing a hopper and I would like to do flow type simulations according to my design measurements.

I m facing a problem. Could you please tell me. How do i resolve this. Makefile:461: *** 'Could not compile a simple MPI example. Test was done with MPI_INC="" and MPICXX="mpicxx"'. Stop. make[1]: Leaving directory '/home/M/LIGGGHTS-PUBLIC/src/Obj_auto'.

I really enjoyed this and would like to see the final results.

your missing One key aspect with the lifts, real world lifts have a slight negative (-5) tilt back on the top side to help dump more on the down stroke in to the funnel this will prevent items form returning at a much higher rate. I fix these for a living, its real trust me :) Think of it as a inverted drop roller coster

hi by which software did you analyse this model?

I can’t find source code for this tutorial

Sir i am not able to run lmp380 -in fluidisedBed.lmp command what might be the reason?

I had a question regarding this mixing. What would happen if i had particles in sub-micrometer scale? The number if particles in the system would increase thousand fold which will lead to infinite simulation time. How are scale-ups done regarding this mixing process?

How do you manage to open .liggghts in Paraview

what software are you use?

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.

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

Hello, Can I extract the particles' location file after the filling process before starting discharge?

Hey! I have questions, is it possible to find each granule center when the filling process ends? if it is how can ı find a tutorial that explains that?

Hello could you please guide for how to export saffman lift force and virtual mass force from the post processing? Before run the model those forces already ticked in options, when I do the post processing, I can’t find those data export

I find this very fascinating, I was wondering if the shape of the bucket would make a difference? It would be interesting if the bucket was sloped less than 90 degrees to the belt. Would it discharge more completely and sooner? Thanks again

사랑합니다 ㅠㅠ

that's beautiful 😍

Helo sir, I tried today to install. I follow stepby step in the document guideline. until here: sudo apt-get -y install openfoam8 then, appears.. Desktop$ sudo apt-get -y install openfoam8 [sudo] password for amiru: Reading package lists... Done Building dependency tree... Done Reading state information... Done E: Unable to locate package openfoam8 any idea to solve? I hve tried few ways. but still unable to solve the : Unable to locate package openfoam8 issue. Appreciate your assistance on this. Thanks.

Mine shows "unable to locate package ffmepg" when i enter the first code. How to fix this?

Hello Engineerdo team Is it possible to customise the number of particles I want to insert? Suppose let's say i only want to have exactly 500 particles? Excellent tutorial btw. Thank you very much

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.

I am waiting for part 3. Please.

Hello, nicely done ! But I'm beginner and I want to understand why do you have a STL file for "air" ? Thanks

I need final

0.25 speed make it ... sexy :D

Nice video! Would you be interested to model a 4 seat convertible with wind deflector behind front seats first the with deflector behind rear seats? It would be interesting to see effect on airflow zoomed in on the cabin

How can i run .liggghts on paraview?