[erklaerbaer]

Hi,

we want to investigate the mass transfer between bubbles and the surrounding liquid for a bubble column type set-up. We plan to use the reactingTwoPhaseEulerFoam solver which has - for my understanding - all necessary models.

1) Is there any kind of documentation available for that solver and the setup I could read?

2) I have some questions on the phaseProperties file, maybe some can help me

2.1)What is the meaning of these kind of lines?

        minFullyContinuousAlpha.gas 0.7;
        minPartlyContinuousAlpha.gas 0.5;
        minFullyContinuousAlpha.liquid 0.7;
        minPartlyContinuousAlpha.liquid 0.5;

2.2) A lot of entries are defined for "(gas in liquid)" and "(liquid in gas)". Are these entries to define different models/values if one phase is the continuous one and one phase is the discontinuous one?

2.3) In the bubbleColumnEvaporatingDissolving\constant\phasePr operties file is the following definition:

interfaceComposition
(
    (gas in liquid)
    {
        type Saturated;
        species ( water );
        Le 1.0;
        saturationPressure
        {
            type ArdenBuck;
        }
    }

    (liquid in gas)
    {
        type Henry;
        species ( air );
        k ( 1.492e-2 );
        Le 1.0;
    }
);

Why is water defined in the (gas in liquid) section and air in the (liquid in gas) section?

Thanks for your help.
Best regards
Andreas

[yaoyn]

Originally Posted by erklaerbaer

Hi,

we want to investigate the mass transfer between bubbles and the surrounding liquid for a bubble column type set-up. We plan to use the reactingTwoPhaseEulerFoam solver which has - for my understanding - all necessary models.

1) Is there any kind of documentation available for that solver and the setup I could read?

2) I have some questions on the phaseProperties file, maybe some can help me

2.1)What is the meaning of these kind of lines?

        minFullyContinuousAlpha.gas 0.7;
        minPartlyContinuousAlpha.gas 0.5;
        minFullyContinuousAlpha.liquid 0.7;
        minPartlyContinuousAlpha.liquid 0.5;

2.2) A lot of entries are defined for "(gas in liquid)" and "(liquid in gas)". Are these entries to define different models/values if one phase is the continuous one and one phase is the discontinuous one?

2.3) In the bubbleColumnEvaporatingDissolving\constant\phasePr operties file is the following definition:

interfaceComposition
(
    (gas in liquid)
    {
        type Saturated;
        species ( water );
        Le 1.0;
        saturationPressure
        {
            type ArdenBuck;
        }
    }

    (liquid in gas)
    {
        type Henry;
        species ( air );
        k ( 1.492e-2 );
        Le 1.0;
    }
);

Why is water defined in the (gas in liquid) section and air in the (liquid in gas) section?

Thanks for your help.
Best regards
Andreas

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