||October 21, 2013 04:40
compressible flow tutorial - bounded warning
I am new in CFD and OpenFoam and i've got a question:
When i'm running the following tutorial:
the terminal gives the following warning-message:
--> FOAM Warning :
From function gaussConvectionScheme
in file finiteVolume/convectionSchemes/gaussConvectionScheme/gaussConvectionScheme.H at line 123
Reading "/home/<user>/OpenFOAM/<user>-2.2.1/run/duese/processor0/../system/fvSchemes.divSchemes.div(phid,p)" at line 40
Unbounded 'Gauss' div scheme used in steady-state solver, use 'bounded Gauss' to ensure boundedness.
To remove this warning switch off 'boundedGauss' in "/opt/openfoam221/etc/controlDict"
The tutorial-case still converges. What does this warning in fact mean and what does this 'bounded' mean?
If i change the following code in fvScheme from:
div(phid,p) Gauss upwind;
div((phi|interpolate(rho)),p) Gauss upwind;
div(phid,p) bounded Gauss upwind;
div((phi|interpolate(rho)),p) bounded Gauss upwind;
the warning disappears... but the case also did not converges anymore