Fig 1.
3D model and section view of E3 NGV.
Fig 2.
Distribution of film cooling holes along the section of NGV.
Fig 3.
Boundary conditions for high-pressure turbine guide vane.
Table 1.
Scheme for mesh convergence study.
Fig 4.
Mesh grid for both fluid and solid domains. a) Fluid domain, b) solid domain, c) Mesh details, d) Yplus.
Fig 5.
Coolant flow rate for different rows of film-cooling holes.
Fig 6.
Comparison between CHT simulation and test data [28].
Table 2.
Comparison of simulated parameters with reference data [28].
Fig 7.
Schematic of the test equipment.
Fig 8.
Scheme of the test section.
Fig 9.
3-D printed NGV specimen.
Table 3.
Main test parameters.
Fig 10.
Comparison of the isentropic Ma distribution along the middle section of NGV.
Fig 11.
Comparison of surface temperature distribution along the middle section of NGV.
Fig 12.
Relative error bar of surface temperature.
Fig 13.
The temperature difference between the SA model and the k-w SST model.
Table 4.
Conditions for uncertainty analyses.
Fig 14.
Effect of coolant temperature on the mainstream (contour of Mach number).
Fig 15.
Influence of cooling temperature deviation on NGV surface temperature.
Fig 16.
Influence of cooling inlet pressure deviation on NGV surface temperature.
Fig 17.
Effect of inlet turbulence intensity on the main flow (streamline diagram).
Fig 18.
Effect of inlet turbulence intensity on NGV surface temperature (compared to baseline).
Fig 19.
Comparison between the manufactured and designed vane.
Fig 20.
Profile difference between the manufactured and designed vanes (middle section).
Table 5.
Mass flow rate for manufactured and designed vane (for single passage).
Fig 21.
Effect of manufacturing deviation on NGV surface temperature.
Fig 22.
Comparison of the streamlines between the designed (a) and manufactured (b) NGV.
Fig 23.
Effects on cooling air mass flow rate.
Fig 24.
Effect on the NGV leading edge temperature.
Fig 25.
Effect on the turbulence kinetic energy along the NGV surface.