Step 5: Phases

Phases

  In the following steps you will define the liquid water and air phases that flow in the tee junction.

1.   Specify liquid water as the primary phase.

Phases phase-1 Edit...

(a)   Enter water for Name.

(b)   Select water-liquid from the Phase Material drop-down list.

(c)   Click OK to close the Primary Phase dialog box.

2.   Specify air as the secondary phase.

Phases phase-2 Edit...

(a)   Enter air for Name.

(b)   Retain the default selection of air from the Phase Material drop-down list.

(c)   Enter 0.001 ${\rm m}$ for Diameter.

(d)   Click OK to close the Secondary Phase dialog box.

3.   Check that the drag coefficient is set to be calculated using the Schiller-Naumann drag law.

Phases Interaction...

(a)   Retain the default selection of schiller-naumann from the Drag Coefficient drop-down list.

  The Schiller-Naumann drag law describes the drag between the spherical particle and the surrounding liquid for a wide range of conditions. In this case, the bubbles have an approximately spherical shape with a diameter of 1 mm.

(b)   Click OK to close the Phase Interaction dialog box.