twoPhaseEulerFoam running problem

Gitesh P · August 11, 2011, 10:17

Hello,

I am simulating gas-liquid flow with twoPhaseEulerFoam solver with OpenFOAM 1.7.

There following fields which I have initialized in case/0 directory,

- alpha (VF)
- k
- epsilon
- p(pressure)
- T(water-temperature)
- Ua(gas-velocity)
- Ub(water-velocity)

There is no any Theta field in case/0 but still I am getting following error.

PHP Code:


			
--> FOAM FATAL IO ERROR: 
cannot open file

file: /home/patel/OpenFOAM/patel-1.7.1/run/STB31/0/Theta at line 0.

    From function regIOobject::readStream()
    in file db/regIOobject/regIOobjectRead.C at line 61.

FOAM exiting

Here is my fvSchemes file.

Please help me. I am new at OpenFOAM environment.

With regards,
Gitesh

pit · August 12, 2011, 05:26

Are you sure that you have the right files?
In the tutorial case the Theta file exist in 0/ and in the fvSolution/fvSchemes.

Gitesh P · August 12, 2011, 08:05

Hello,

Now the problem is solved.

The field for theta has to be defined since the code reads it at the beginning of the simulation, when the object for the kinetic theory model is created.

In other words, for gas-liquid systems, the values you use in the kineticTheory dictionary play no role. You only have to make sure that boundary conditions are defined.

With regards,
Gitesh

tong · November 21, 2013, 00:46

Hi Gitesh,

Would you be able to explain why kineticTheory dictionary plays no role for a gas-liquid simulation?

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August 12, 2011, 05:26		#2
pit New Member Join Date: Mar 2010 Posts: 25 Rep Power: 16	Are you sure that you have the right files? In the tutorial case the Theta file exist in 0/ and in the fvSolution/fvSchemes.

August 12, 2011, 08:05		#3
Gitesh P Member Gitesh Join Date: Jan 2010 Location: Finland Posts: 73 Rep Power: 16	Hello, Now the problem is solved. The field for theta has to be defined since the code reads it at the beginning of the simulation, when the object for the kinetic theory model is created. In other words, for gas-liquid systems, the values you use in the kineticTheory dictionary play no role. You only have to make sure that boundary conditions are defined. With regards, Gitesh

November 21, 2013, 00:46		#4
tong New Member Join Date: Sep 2013 Posts: 5 Rep Power: 13	Hi Gitesh, Would you be able to explain why kineticTheory dictionary plays no role for a gas-liquid simulation?