CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   2 region with varied properties (http://www.cfd-online.com/Forums/openfoam-solving/128421-2-region-varied-properties.html)

guserik January 11, 2014 15:58

2 region with varied properties
 
I try to simulate reduction of pressure in an air tank with rhoPimpleFoam. In the air tank the pressure is 9 bar and the surrounding is 1 atm. I got problem with the solver in the begining of the simulation for T < 0.001 s. i think this is related to a small region with high pressure gradients initial. I dont know if there is any ways around this issue? The error message is shown below. My temperature diverge completely. I use rhomin rhomax 100 and 0.5 kg/m3

From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 4.45601e+12
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 6.61456e+12
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 5.04776e+08
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 159931
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 1.01122e+14
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 1.01122e+14
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 5.04776e+08
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 1.06274e+07
--> FOAM Warning :
From function janafThermo<EquationOfState>::limit(const scalar T) const
in file /disk/sw/OpenFOAM/OpenFOAM-2.2.2/src/thermophysicalModels/specie/lnInclude/janafThermoI.H at line 108
attempt to use janafThermo<EquationOfState> out of temperature range 200 -> 6000; T = 1.06274e+07


All times are GMT -4. The time now is 06:32.