Research Article

Simulation of Impinging Cooling Performance with Pin Fins and Mist Cooling Adopted in a Simplified Gas Turbine Transition Piece

Table 1

Boundary conditions.

ComponentBoundary conditionsMagnitude

Mainstream inletMass flux rate32.72 (kg/s)
Gas temperature1300 (K)
Turbulent intensity5 (%)
Hydraulic diameter0.324 (m)

Mainstream outletPressure1.573 (MPa)
Turbulent intensity5 (%)
Hydraulic diameter0.324 (m)

Coolant chamberAir temperature300 (K)
Pressure1.82138 (MPa)
Pressure recovery coefficient0.98
Turbulent intensity10 (%)
Hydraulic diameter0.01026 (m)

DropletsDiameter5 (um)
Total flow rate0.003 (kg/s)