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Forum: OpenFOAM Post-Processing

December 2, 2009, 08:01

Replies: 72

Forces in V1.6

Views: 31,292

Posted By terrybarnaby

As far as I know: Pressure force is the force...

As far as I know:
Pressure force is the force on the object due directly to pressure differences.
Viscous force is the force due to the "friction" of the fluid passing over the objects surface.
...

Forum: OpenFOAM Post-Processing

October 14, 2009, 09:44

Replies: 72

Forces in V1.6

Views: 31,292

Posted By terrybarnaby

Sorry, I am only a novice at this so I don't know...

Sorry, I am only a novice at this so I don't know how to do that.

You could try adding:
log true;

I'm not sure what that does ...

Forum: OpenFOAM Post-Processing

October 14, 2009, 09:24

Replies: 72

Forces in V1.6

Views: 31,292

Posted By terrybarnaby

Obviously rhoInf should be set how you need it :)

Obviously rhoInf should be set how you need it :)

Forum: OpenFOAM Post-Processing

October 14, 2009, 09:22

Replies: 72

Forces in V1.6

Views: 31,292

Posted By terrybarnaby

Hi, You need to add: rhoName rhoInf; ...

Hi,

You need to add:

rhoName rhoInf;
rhoInf 1.17;

instead of:

rhoName rho;

Forum: OpenFOAM Post-Processing

September 2, 2009, 12:33

Replies: 72

Forces in V1.6

Views: 31,292

Posted By terrybarnaby

Looking at the source code it looks like I need...

Looking at the source code it looks like I need to add: "rhoName rhoInf;" to the "forces" and "forceCoeffs" entreis in controlDict or provide a "rho" initial conditions file in "0".
This appears to...

Forum: OpenFOAM Post-Processing

September 2, 2009, 11:35

Replies: 72

Forces in V1.6

Views: 31,292

Posted By terrybarnaby

Forces in V1.6

Hi, I have updated from 1.5 to 1.6 (GIT source). I have modified some of my cases control files to get OpenFOAM 1.6 to work but I am having problems with forces in simpleFoam.
I get the error...

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