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Forum: Main CFD Forum

September 4, 2013, 10:07

Replies: 13

pressure development

Views: 1,304

Posted By FMDenaro

Sorry to say that using a CFD code is not as same...

Sorry to say that using a CFD code is not as same as using a Play Station... You must be aware of the physics of the problem, having knowledge of fluid dynamics, numerical analysis and eventually...

Forum: Main CFD Forum

September 4, 2013, 03:50

Replies: 13

pressure development

Views: 1,304

Posted By FMDenaro

If you plot the thermodinamic pressure rho*R*T it...

If you plot the thermodinamic pressure rho*R*T it must be always positive, if you plot the dynamic pressure rho*V^2 it must be positive, too.
Therefore, or you are plotting a scaled pressure or your...

Forum: Main CFD Forum

September 2, 2013, 03:51

Replies: 13

pressure development

Views: 1,304

Posted By FMDenaro

1) what pressure you are plotting? I see Pascal...

1) what pressure you are plotting? I see Pascal in the scale but I also see negative values, therefore what is plotted is not p= rho*R*T
2) your model is compressible, therefore without density and...

Forum: Main CFD Forum

September 1, 2013, 17:58

Replies: 13

pressure development

Views: 1,304

Posted By FMDenaro

ok, could you post the figures (iso-contour) of...

ok, could you post the figures (iso-contour) of pressure, density and velocity?

Forum: Main CFD Forum

August 31, 2013, 16:06

Replies: 13

pressure development

Views: 1,304

Posted By FMDenaro

Please, more details should be provided......

Please, more details should be provided... compressible/incompressible model, geometry, steady/unsteady solver, etc.
You made an assumption based on the Bernouilli relation but that applies for...

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