Can't see results in Paraview, OpenFOAM

hugolopessilva · April 17, 2024, 05:08

Hi,

I did a simulation in OpenFOAM 6 and can solve it. However, when I open paraview to see the results, I can only see the velocity U. I tried to see the kinematic pressure p, but I can't see any result there. Any ideas on what I might be doing wrong?

Best regards,

SHUBHAM9595 · April 17, 2024, 07:24

Hi Johnny,

This might be probably because of the wrong header for the pressure file. Can you share the first few lines of pressure file. Execute the following command in your simulation directory and let us know the output

Code:

head -25 0/p

hugolopessilva · April 22, 2024, 04:50

Hi,

Thank you for your reply. I am sending the header of the pressure file, which I obtained by writing the command you suggested at the terminal.

/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions [0 2 -2 0 0 0 0];

internalField uniform 0;

boundaryField
{
movingWall
{
type zeroGradient;

SHUBHAM9595 · April 23, 2024, 15:17

Hi John, are you sure you executed the command in the correct working directory/with correct OF version ? Because your output shows version 8 but right in the beginning you mentioned you are using V6

Code:

/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 8
\\/ M anipulation |
\*---------------------------------------------------------------------------*/

In any case, I dont think this line (either Version : 8 or Version : 6) should be the main cause for your problem (bcz the actual info that matters start from FoamFile). If possible can you share your case file, maybe then its easier to narrow down the reason.

hugolopessilva · April 25, 2024, 10:18

Hi,

Yeah, I am using version 8 now. I was using version 6 a few weeks ago.

Which file do you mean by case file?

April 17, 2024, 05:08	Can't see results in Paraview, OpenFOAM	#1
hugolopessilva New Member Johhny long Join Date: Sep 2020 Posts: 16 Rep Power: 5	Hi, I did a simulation in OpenFOAM 6 and can solve it. However, when I open paraview to see the results, I can only see the velocity U. I tried to see the kinematic pressure p, but I can't see any result there. Any ideas on what I might be doing wrong? Best regards,

April 17, 2024, 07:24		#2
SHUBHAM9595 Member MNM Join Date: Aug 2017 Posts: 69 Rep Power: 8	Hi Johnny, This might be probably because of the wrong header for the pressure file. Can you share the first few lines of pressure file. Execute the following command in your simulation directory and let us know the output Code: head -25 0/p

April 23, 2024, 15:17		#4
SHUBHAM9595 Member MNM Join Date: Aug 2017 Posts: 69 Rep Power: 8	Hi John, are you sure you executed the command in the correct working directory/with correct OF version ? Because your output shows version 8 but right in the beginning you mentioned you are using V6 Code: /--------------------------------- C++ -----------------------------------\ ========= \| \\ / F ield \| OpenFOAM: The Open Source CFD Toolbox \\ / O peration \| Website: https://openfoam.org \\ / A nd \| Version: 8 \\/ M anipulation \| \---------------------------------------------------------------------------/ In any case, I dont think this line (either Version : 8 or Version : 6) should be the main cause for your problem (bcz the actual info that matters start from FoamFile). If possible can you share your case file, maybe then its easier to narrow down the reason.

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April 22, 2024, 04:50		#3
hugolopessilva New Member Johhny long Join Date: Sep 2020 Posts: 16 Rep Power: 5	Hi, Thank you for your reply. I am sending the header of the pressure file, which I obtained by writing the command you suggested at the terminal. /--------------------------------- C++ -----------------------------------\ ========= \| \\ / F ield \| OpenFOAM: The Open Source CFD Toolbox \\ / O peration \| Website: https://openfoam.org \\ / A nd \| Version: 8 \\/ M anipulation \| \---------------------------------------------------------------------------/ FoamFile { version 2.0; format ascii; class volScalarField; object p; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 2 -2 0 0 0 0]; internalField uniform 0; boundaryField { movingWall { type zeroGradient;

April 25, 2024, 10:18		#5
hugolopessilva New Member Johhny long Join Date: Sep 2020 Posts: 16 Rep Power: 5	Hi, Yeah, I am using version 8 now. I was using version 6 a few weeks ago. Which file do you mean by case file?