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Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
Publisher: ASME
J. Turbomach. November 2023, 145(11): 111003.
Paper No: TURBO-22-1267
Published Online: September 14, 2023
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 1 Typical evolution of rotor thermal gradient during shutdown cooling More about this image found in Typical evolution of rotor thermal gradient during shutdown cooling
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 2 Schematic of the RoBo experimental facility. θ is positive clockwise from top-dead-center. Square markers represent embedded thermocouples. More about this image found in Schematic of the RoBo experimental facility. θ is positive clockwise from...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 3 The RoBo facility More about this image found in The RoBo facility
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 4 Four rows of blades installed in a partially assembled RoBo facility More about this image found in Four rows of blades installed in a partially assembled RoBo facility
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 5 Top: schematic of the simulation domain that was used for ventilated cases. Bottom: section view of the mesh showing the vertical mid-plane, inner cylinder, and blade surface meshes. This was used for a case that included blades and ventilation. The outer cylinder mesh is not shown. More about this image found in Top: schematic of the simulation domain that was used for ventilated cases...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 6 Experimental (markers) and CFD (lines) radial temperature profiles for an unobstructed, sealed case. R a D i = 6.3 × 10 7 and Dr = 1.25. θ = 0 deg at TDC. More about this image found in Experimental (markers) and CFD (lines) radial temperature profiles for an u...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 7 Experimental (markers) and CFD (lines) radial temperature profiles for an unobstructed, ventilated case. R a D i = 6.3 × 10 7 and Dr = 1.25. θ = 0 deg at TDC. More about this image found in Experimental (markers) and CFD (lines) radial temperature profiles for an u...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 8 Convective heat flux measurements for a sealed and ventilated case, with no blades, R a D i = 6.3 × 10 7 , Dr = 1.25, and z / D = 0.74. CFD results are also shown. More about this image found in Convective heat flux measurements for a sealed and ventilated case, with no...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 9 Numerical predictions of inner surface Nu at z / D = 0.74 for a ventilated case at both experimental and engine scale More about this image found in Numerical predictions of inner surface Nu at z / D = 0.74 for a ventilate...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 10 Experimental transient cooling temperatures of the inner cylinder as it is cooled from an initial R a D i = 6.3 × 10 7 steady state. “t” is at θ = 0 deg; “b” is at θ = 144 deg. See Table 1 for information about each test condition. More about this image found in Experimental transient cooling temperatures of the inner cylinder as it is ...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 11 Top-to-bottom temperature difference curves for the inner cylinder ( i ), outer cylinder ( o ), and the inner cone ( c ), as the rig cooled down from R a D i = 6.3 × 10 7 . See Table 1 for information about each test condition. More about this image found in Top-to-bottom temperature difference curves for the inner cylinder ( i ), o...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 12 Experimental transient cooling temperatures of the outer cylinder as it is cooled from R a D i = 6.3 × 10 7 . “t” is at θ = 0 deg; “b” is at θ = 180 deg. See Table 1 for information about each test condition. More about this image found in Experimental transient cooling temperatures of the outer cylinder as it is ...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 13 CFD velocity contours at the radial mid-plane of the concentric cylinder section. Left: 0s o. Right: 4s o. More about this image found in CFD velocity contours at the radial mid-plane of the concentric cylinder se...
Image
in Axial Ventilation and Blade Row Effects on Transient Natural Convective Shutdown Cooling in a Gas Turbine
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 14 Peak inner cylinder top-to-bottom temperature difference observed in transient cooling from R a D i = 6.3 × 10 7 , for different number of blades rows More about this image found in Peak inner cylinder top-to-bottom temperature difference observed in transi...
Journal Articles
Journal:
Journal of Turbomachinery
Article Type: Research Papers
Publisher: ASME
J. Turbomach. November 2023, 145(11): 111004.
Paper No: TURBO-23-1147
Published Online: September 14, 2023
Image
in Characterizing Shrouded Stator Cavity Flow on the Performance of a Single-Stage Axial Transonic Compressor
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 1 Illustration of TUDa-GLR-OpenStage test rig More about this image found in Illustration of TUDa-GLR-OpenStage test rig
Image
in Characterizing Shrouded Stator Cavity Flow on the Performance of a Single-Stage Axial Transonic Compressor
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 2 Illustration of grid topology, flow domain, and boundary conditions of TUDa-GLR-OpenStage with a full-scale cavity seal More about this image found in Illustration of grid topology, flow domain, and boundary conditions of TUDa...
Image
in Characterizing Shrouded Stator Cavity Flow on the Performance of a Single-Stage Axial Transonic Compressor
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 3 Validation of the full-scale model on predicting the overall performance of the TUDa-GLR-OpenStage with stator cavity More about this image found in Validation of the full-scale model on predicting the overall performance of...
Image
in Characterizing Shrouded Stator Cavity Flow on the Performance of a Single-Stage Axial Transonic Compressor
> Journal of Turbomachinery
Published Online: September 14, 2023
Fig. 4 Validation of the full-scale model on predicting the 2D distribution of the normalized difference in total pressure Δ π * at the design speed More about this image found in Validation of the full-scale model on predicting the 2D distribution of the...
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