How to run your first OpenFOAM® case yourself - Part 2 

It's interesting to see how the numerical diffusion manifests itself only in the direction of local convection, resulting first in an ellipse, and a circle after the second translation. Neat!

Your videos are very useful for the beiginners like me. I have finished the basic and now moving forward to intermediate. Thanks a lot sir

13:23 to go down to last line of the file in nano editor, press ctrl+end key combination.

Thanks a lot :) Moving to the intermediate tutorials set.

Thank you very much Jozsef Nagy sir. I tried by my self without looking this video. And I end up making 3 different cases . Lol. Then I saw this video and realised my mistake then I corrected it.... Thank you very much sir.

Thank you for great tutorial for beginners

start from latest time in controldict some beginner couldn't catch this.

Create time Create mesh for time = 0 Reading setFieldsDict Setting field default values Setting internal values of volScalarField T Setting field region values --> FOAM FATAL IO ERROR: (openfoam-2012) Entry 'radius' has 6 excess tokens in stream 7(1 fieldValues ( volScalarFieldValue T 1 )) file: sphereToCell at line 29. FOAM exiting @József Nagy, any solution for this?

I thank you Jozsef, you are the best!

Thanks a lot for this great tutorial

I am trying to simulate colliding droplets with multiphase VOF solver( interFoam) in OpenFOAM so, the problem I'm having is to give velocities of same magnitude but opposite in direction to droplets, using internal fields won't help same as with setFields which accepts only scalar fields so, any help in this would be highly appreciated

Hi Jozef thanks a lot for the informative tutorial. The velocity field you had mentioned is constant. How and we simulate in an accelerating field (for example U = t, where t in time)? If possible kindly made a video.

Hi professor, so even for" sphereToCell", it will generate a cylinder of radius 1 for this case? .....it seems using cylinderToCell is more intuitive. Based on the word "sphere", it seems spheretocell might generate a ball shape region at 0 0 0, and the circle shown on the front and back "empty plane" might not have the radius of 1.

Hi, How to know the required physical properties (eg. thermophysical properties ,transport properties..etc in the constant directory) for each solver? For example, if I want to solve a case using the icoFoam solver, may be I have to copy a basecase from an icoFoam tutorial and check out the required properties from that?

After finishing the basic, which video should I watch? intermediate?btw, your video is really useful!

When I click the button in paraview to see the next step, it jumps over a period of time of 1.3333s rather than 1s. This causes paraview never to show the folder after 2 seconds since it jumps from 1.333 (approximately 1) to 2.6666 (approximately 3). The folders that are created in my file however only contain integers and I can also put these integers manually. Is there a reason for this strange behavior of paraview?

Hello, in my OpenFoam folder I'm missing the setFieldsDict file in the tutorials / basic / scalarTransportFoam / location, how do I solve it?

how do we do it in one go ? l tried giving the if condition using runTime in the U file. But, I guess that was the wrong way to do. gave me so many errors which I failed to solve.

I am never able to see the initial conditions in paraview. Only after I run my simulation I am. I am talking about 12.09. This happened during the grid convergence tutorial as well. But if I use paraFoam instead of paraview & then I can see the initial values? why so?

I can not see the temperature at all in paraview same for the velocity, in my 0 folder there is the Temperature file how can this be?

sorry for the question, but what does the boundery inletOutlet means? I read the user and I still didnt get it

why things come to wrong ? Reading setFieldsDict Setting field default values Setting internal values of volScalarField T Setting field region values Adding cells with centre within sphere, with centre = (0 0 0) and radius = 1 --> FOAM Warning : From function Foam::autoPtr setCellField::iNew::operator()(Foam::Istream&) const in file setFields.C at line 174 field type volScalarFieldvalue not currently supported --> FOAM Warning : From function Foam::autoPtr setCellField::iNew::operator()(Foam::Istream&) const in file setFields.C at line 174 field type T not currently supported --> FOAM FATAL IO ERROR: wrong token type - expected word, found on line 27 the label 1 file: .sphereToCell.fieldValues at line 27. From function Foam::Istream& Foam::operator>>(Foam::Istream&, Foam::word&) in file primitives/strings/word/wordIO.C at line 74. FOAM exiting

Hiii. In your youtube video "How to run your first openfoam case yourself" though I deleted phi, still the scalar transport is going out of the domain which is suppose to go in positive y direction. Please help me

Create time Create mesh for time = 0 SIMPLE: no convergence criteria found. Calculations will run for 4 steps. Reading field T Reading field U Reading transportProperties Reading diffusivity DT Reading/calculating face flux field phi No finite volume options present Calculating scalar transport Courant Number mean: 0.1 max: 0.1 Time = 0.01 --> FOAM FATAL IO ERROR: (openfoam-2012) Entry 'T' not found in dictionary "" From const Foam::dictionary& Foam::dictionary::subDict(const Foam::word&, Foam::keyType::option) const in file db/dictionary/dictionary.C at line 537. FOAM exiting I got this error here 3 times, and still, I am unable to solve it. @József Nagy, can you tell me what it is?