Page 305 - TransAT_Tutorial_Manual

TransAT Tutorial Manual 7.2. coupling slug

Phase 1
Fluid : Air
Density : 1.205
Viscosity : 1.8208 e−5
Conductivity : 0.0257
Heat Capacity : 1005
State of Phase : gas

• Proceed similarly to set the phase properties of Phase 2 and Phase 3 as the following
Phase 2
Fluid : Air
Density : 1.205
Viscosity : 1.511 e−5
Conductivity : 0.0257
Heat Capacity : 1005
State of Phase : gas

Phase 3
Fluid : Water
Density : 997.78
Viscosity : 0.0009772
Conductivity : 0.60475
Heat Capacity : 4076.4
State of Phase : l i q u i d

Note that three phases are defined because of the coupling with OLGA. Indeed, OLGA usually
simulates three-phase simulations with oil, gas and water. Since only air and water are present
in the system, an additional dummy phase (phase 1) was created.

Phases Interactions
In the Phases Interactions tab, the interphase slip models will be defined between the phases.
Click on . The clift drag model will be used for all relations, without lift or
wall lubrication.

• Select Drag Model in the Interphase Slip Relations drop-down choice.

• Select Clift for all relations in the drag table

• Select Lift Model in the Interphase Slip Relations drop-down choice.
• Select None for all relations in the lift table

• Select Wall Lubrication Model in the Interphase Slip Relations drop-down choice.

• Select None for all relations in the wall lubrication table

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Ascomp AG Switzerland 295 Version 5.7