Specifying Interface conditions

In this step, the interfaces in the GT-SUITE corresponding to the Inlet and Outlet in the fluid CFD model are linked to create appropriate boundary conditions for the CFD simulation.

Inlet Interface

To create an inlet interface in GT-SUITE, the CFDFlowConn object In is created and specified with the following connection related parameters as shown in Figure 10.96.

Select In under Connections – CFDFlowConn – Type2.
Select the Main tab in the 3D CFD Flow Coupling Interface dialog box.
Select Gas (basic) for Connection Type.
Select Mass Flow (CFD imposes GT pressure) under CFD Interface Type.
Specify 20 mm under Object Value CFD Domain Sampling Length.

Outlet Interface

To create an outlet interface in GT-SUITE, the CFDFlowConn object Out is created and specified with the following connection related parameters as shown in Figure 10.96.

Select Out under Connections – CFDFlowConn – Type1.
Select the Main tab in the 3D CFD Flow Coupling Interface dialog box.
Select Gas (basic) for Connection Type.
Select Pressure (CFD imposes GT velocity) under CFD Interface Type.
Specify 20 mm under Object Value CFD Domain Sampling Length.

Figure 10.96 - Inlet and Outlet Interface

The inlet condition is accessed under Inflow as shown in Figure 10.97 and the outlet condition is accessed under EndEnvironment as shown in Figure 10.98.

Figure 10.97 - Inflow settings

Figure 10.98 - EndEnvironment settings