Fig. 1 Illustrations of Geometry 1–4 used in the simulations in this paper More about this image found in Illustrations of Geometry 1–4 used in the simulations in this paper

Fig. 2 Midspan-section illustrations of Geometry 1–4 with geometric minimum area lines highlighted More about this image found in Midspan-section illustrations of Geometry 1–4 with geometric minimum area l...

Fig. 3 Schematic of ECAT facility working section (without combustor simulator), adapted from [ 11 ] More about this image found in Schematic of ECAT facility working section (without combustor simulator), a...

Fig. 4 Computational domain (Geometry 1) for simulations More about this image found in Computational domain (Geometry 1) for simulations

Fig. 5 Midspan view of the mesh (Geometry 1) More about this image found in Midspan view of the mesh (Geometry 1)

Fig. 6 Distributions of normalised local KE loss coefficient, ζ ′ / ζ ref ″ ″ , for Geometry 1–4 for experiment and CFD predictions. Data are viewed from downstream (VFD); the principal exit flow direction is CW VFD More about this image found in Distributions of normalised local KE loss coefficient, ζ ′ / ζ ...

Fig. 7 CFD-predicted axial vorticity distributions, ω x , for uncooled RANS and cooled RANS. Data are VFD; the exit flow direction clockwise VFD More about this image found in CFD-predicted axial vorticity distributions, ω x , for uncooled RAN...

Fig. 8 Axial vorticity distributions, ω x , from CFD prediction for Geometry 1–4. Data are VFD; the exit flow direction CW VFD More about this image found in Axial vorticity distributions, ω x , from CFD prediction for Geomet...

Fig. 9 Schematic representation of burn-back vortices for Geometry 4, visualised by Q-criterion More about this image found in Schematic representation of burn-back vortices for Geometry 4, visualised b...

Fig. 10 Radial distributions of circumferentially mass-flux-averaged kinetic energy loss coefficient, ζ ″ ( r ) , for Geometry 1–4 for experiment and CFD predictions More about this image found in Radial distributions of circumferentially mass-flux-averaged kinetic energy...

Fig. 11 CFD-predicted vane surface streamlines for Geometry 1 and Geometry 4 on the SS and PS More about this image found in CFD-predicted vane surface streamlines for Geometry 1 and Geometry 4 on the...

Fig. 12 Radial distributions of circumferentially mass-flux-averaged exit flow angle, β ′ ( r ) , for Geometry 1–4 for experiment and CFD predictions More about this image found in Radial distributions of circumferentially mass-flux-averaged exit flow angl...

Fig. 13 Maximum flow angle deviation (from nominal) with burn-back damage depth More about this image found in Maximum flow angle deviation (from nominal) with burn-back damage depth

Fig. 14 CFD-predicted NGV surface isentropic Mach number distributions at 15%, 50%, and 85% span for Geometry 1–4 More about this image found in CFD-predicted NGV surface isentropic Mach number distributions at 15%, 50%,...

Fig. 15 CFD-predicted normalised PS and SS BL profiles for Geometry 1–4 at five different span locations More about this image found in CFD-predicted normalised PS and SS BL profiles for Geometry 1–4 at five dif...

Fig. 16 CFD-predicted normalised PS and SS displacement thicknesses for Geometry 1–4 at five different span locations More about this image found in CFD-predicted normalised PS and SS displacement thicknesses for Geometry 1–...

Fig. 17 CFD-predicted spanwise distribution of normalised boundary layer KE dissipation coefficient, e KE , for Geometry 1–4 More about this image found in CFD-predicted spanwise distribution of normalised boundary layer KE dissipa...

Fig. 18 CFD-predicted BL loss coefficients for Geometry 1–4 More about this image found in CFD-predicted BL loss coefficients for Geometry 1–4