[Yucheng Fu]

In the twoPhaseEulerFoam/constant/phaseProperties file, there is a term called turbulent dispersion term. But it's left blank in tutorials. Which kind of format should I follow if I want to add that term in the problem?

[hester]

Hello,

if you want to use the turbulent dispersion force, you have to define the coefficient Ctd. There are different models defined under twoPhaseEulerFoam/interfacialModels/turbulentDispersionModels/.
A constant coefficient is defined by

        type            constantCoefficient;
        Ctd             0.1;

There is also a model after Gosman, which I'm not familiar with. It needs a definition of sigma.

If you are unsure what variables need to be defined or how a term is implemented have a look at the source code. In the header-file is often also a reference paper for further reading given.

Regards,
hester

[Yucheng Fu]

Hi,hester
Thank you for your help, I think my question is solved
according to your responding!

Originally Posted by hester

Hello,

if you want to use the turbulent dispersion force, you have to define the coefficient Ctd. There are different models defined under twoPhaseEulerFoam/interfacialModels/turbulentDispersionModels/.
A constant coefficient is defined by

        type            constantCoefficient;
        Ctd             0.1;

There is also a model after Gosman, which I'm not familiar with. It needs a definition of sigma.

If you are unsure what variables need to be defined or how a term is implemented have a look at the source code. In the header-file is often also a reference paper for further reading given.

Regards,
hester