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Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure.

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Presentation on theme: "Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure."— Presentation transcript:

1 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Cross section (left) and rear view (right) of the high speed bar rotating rig Figure Legend:

2 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Hot wire calibration map Figure Legend:

3 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Nondimensional KSI against Mach number. Steady and unsteady inflow. Re3=1.3×105. Figure Legend:

4 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Isentropic blade surface Mach number distributions. Steady inflow. Re3=1.3×105. Figure Legend:

5 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Nondimensional KSI against Mach number. Steady and unsteady inflow. Re3=2.0×105. Figure Legend:

6 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Contours of ensemble averaged velocity on smooth surface (top) and with the trip at 60%S0 (bottom). Steady inflow. M3=0.61, Re3=1.3×105. Figure Legend:

7 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Shape factor at different snapshots for the cases of a smooth surface and trip at 60%S0. M3=0.61, Re3=1.3×105. fr=0.48. Figure Legend:

8 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Contours of time mean velocity on smooth surface (top) and with the trip at 66%S0 (center) and with the trip at 60%S0 (bottom). Steady inflow. M3=0.74, Re3=1.3×105. Figure Legend:

9 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 rms of the unsteady pressure measurements as fractions of the exit dynamic pressure. Re3=1.3×105. Steady inflow. Figure Legend:

10 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Ensemble averaged unsteady pressure, raw pressure and rms as fractions of the exit dynamic pressure. M3=0.61, Re3=1.3×105. Streamwise location 85%S0. Unsteady inflow, fr=0.48. Figure Legend:

11 Date of download: 5/31/2016 Copyright © ASME. All rights reserved. From: The Effects of a Trip Wire and Unsteadiness on a High-Speed Highly Loaded Low-Pressure Turbine Blade J. Turbomach. 2004;127(4):747-754. doi:10.1115/1.1934446 Unsteady ensemble averaged pressure (top) and rms as a fraction of exit dynamic pressure (bottom) for the case of smooth surface and trip at 60%S0. M3=0.74, Re3=1.3×105. Streamwise location 85%S0. Unsteady inflow, fr=0.40. Figure Legend:


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