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TECHNICAL PAPERS

Mainstream Aerodynamic Effects Due to Wheelspace Coolant Injection in a High-Pressure Turbine Stage: Part II—Aerodynamic Measurements in the Rotational Frame

[+] Author and Article Information
Christopher McLean, Cengiz Camci

Turbomachinery Heat Transfer Laboratory, The Pennsylvania State University, University Park, PA 16802e-mail: cxc11@psu.edu

Boris Glezer

Optimized Turbine Solutions, 4140 Calle Isabelino, San Diego, CA 92130e-mail: bglezer@san.rr.com

J. Turbomach 123(4), 697-703 (Feb 01, 2001) (7 pages) doi:10.1115/1.1397303 History: Received February 01, 2001
Copyright © 2001 by ASME
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References

Figures

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Rotating instrument and traversing package contained within the rotor drum
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Schematic diagram showing the placement of the five-hole probes for rotational frame data
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Legend for data presentation of coolant flow measurements
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Total pressure loss coefficient in rotational frame at H of 0.15 (a), 0.50 (b), and 0.90 (c). Probe 1.5 chords downstream of the rotor exit.
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Axial velocity in the rotational frame at H of 0.15 (a), 0.50 (b), and 0.90 (c). Probe 1.5 chords downstream of the rotor exit.
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Radial velocity in the rotational frame at H of 0.15 (a), 0.50 (b), and 0.90 (c). Probe 1.5 chords downstream of the rotor exit.
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Tangential velocity in the rotational frame at H of 0.15 (a), 0.50 (b), and 0.90 (c). Probe 1.5 chords downstream of the rotor exit.
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Exit angle in the rotational axial-tangential plane (β) at H of 0.15 (a), 0.50 (b), and 0.90 (c). Probe 1.5 chords downstream of the rotor exit.
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Exit angle in the rotational axial-radial plane (α) at H of 0.15 (a), 0.50 (b), and 0.90 (c). Probe 1.5 chords downstream of the rotor exit.
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Pressure measurements on the rotor leading edge for root injection blowing ratios of 1.00 percent (a), 1.25 percent (b), and 1.50 percent (c)
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Kulite data from the rotor platform. The root injection (jagged line) shows noticeable wake reduction from the noncooled case. Four vane passages are shown.
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Frequency domain processing of leading edge Kulite run data with fast Fourier transform

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