Modeling Dissolution Mass Transfer

For Eulerian multi-component multiphase flows, transfer between the components of each phase can occur. The Dissolution Mass Transfer Rate model includes the case where one phase is liquid and one phase is gaseous, and the case where both phases are liquid.

The steps in this procedure are intended to follow on from Step 4 in Modeling Bubbly and Droplet Flows.

In Simcenter STAR-CCM+, the rate of transfer of species from one phase to another is governed by Eqn. (2163).

To model dissolution mass transfer:

  1. In the phase interaction, select the following models in addition to the models that you previously selected:
    Group Box Model

    Reaction Regime

    Non-reacting

    Optional Models

    		Interphase Mass Transfer
    Interphase Mass Transfer Rate Dissolution Mass Transfer Rate
  2. If the Phase Coupled Fluid Energy model is already activated, select the Interphase Energy Transfer phase interaction model to make sure that the phase temperatures reach sensible values.

    The Dissolution Mass Transfer Rate model assumes that the effect of interphase mass transfers on the phase temperatures is negligible.

  3. Select the Dissolution Mass Transfer Rate node and set the Phase 0 Components property to specify the components to transfer.

    For each transfer activated, the continuous phase component name appears under the Equilibrium Coefficient > Composite node.

  4. In the Continuous Phase Sherwood Number and Dispersed Phase Sherwood Number nodes, specify the appropriate settings.

    See Sherwood Number Properties.

  5. In the Equilibrium Coefficient > Composite node, specify the appropriate equilibrium coefficients.

    See Equilibrium Coefficient Properties.

Return to Modeling Bubbly and Droplet Flows and continue with Step 4.