CFD Online Discussion Forums - How to set empty field in multiphaseEulerFoam

Dear foamers,
I have a geometry with one inlet where the two-phase (water-oxygen) enters the square container which is half-filled with water.

I need to keep the other half empty so that I can collect the data of oxygen separation from water, but I am not able to not set the other half, as the solver don't run without setting it.

Code:

defaultFieldValues

(

    volScalarFieldValue alpha.oxygen 0

    volScalarFieldValue alpha.water 0

);



regions

(

  

        boxToCell

    {

                box (0 0 0) (1.2 0.4 1);

        fieldValues

        (

            volScalarFieldValue alpha.oxygen 0

                        volScalarFieldValue alpha.water 1

        );

    }

  

);

I tried it but no use, can someone please suggest how I can to initialize cells without alpha of any phase.

I am using openfoam version 8.

I have attached the fields set with alpha.oxygen as 1 and alpha.water as 0, this was the only way for me to run the simulation.

Can someone please suggest how I can set an empty intial phase property for the space above water in the container?

Attachment 89506

Thank you
Akshay