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Ashlie Flegel_ MasterThesis.pdf (4.24 MB)

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Aerodynamic Measurements of a Variable-Speed Power-Turbine Blade Section in a Transonic Turbine Cascade

Flegel, Ashlie Brynn
http://rave.ohiolink.edu/etdc/view?acc_num=csu1387437733

Abstract Details

2013, Master of Science in Mechanical Engineering, Cleveland State University, Fenn College of Engineering.
The purpose of this thesis is to document the impact of incidence angle and Reynolds number variations on the 3-D flow field and midspan loss and turning of a 2-D section of a variable-speed power-turbine (VSPT) rotor blade. Aerodynamic measurements were obtained in a transonic linear cascade at NASA Glenn Research Center in Cleveland, OH. Steady-state data were obtained for ten incidence angles ranging from +15.8&00B0; to -51.0&00B0;. At each angle, data were acquired at five flow conditions with the exit Reynolds number (based on axial chord) varying over an order-of-magnitude from 2.12 &00D7; 10^5 to 2.12 &00D7; 10^6. Data were obtained at the design exit Mach number of 0.72 and at a reduced exit Mach number of 0.35 as required to achieve the lowest Reynolds number. Midspan total-pressure and exit flow angle data were acquired using a five-hole pitch/yaw probe surveyed on a plane located 7.0 percent axial-chord downstream of the blade trailing edge plane. The survey spanned three blade passages. Additionally, three-dimensional half-span flow fields were examined with additional probe survey data acquired at 26 span locations for two key incidence angles of +5.8&00B0; and -36.7&00B0;. Survey data near the endwall were acquired with a three-hole boundary-layer probe. The data were integrated to determine average exit total-pressure and flow angle as functions of incidence and flow conditions. The data set also includes blade static pressures measured on four spanwise planes and endwall static pressures.
Mounir Ibrahim, PhD (Committee Chair)
Miron Kaufman, PhD (Committee Member)
Ralph Volino, PhD (Committee Member)
66 p.
Aerospace Engineering; Mechanical Engineering
Turbomachinery; aerodynamics; rotorcraft; cascade; power-turbine; turbines; experimental aerodynamics

Recommended Citations

Citations

  • Flegel, A. B. (2013). Aerodynamic Measurements of a Variable-Speed Power-Turbine Blade Section in a Transonic Turbine Cascade [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1387437733

    APA Style (7th edition)

  • Flegel, Ashlie. Aerodynamic Measurements of a Variable-Speed Power-Turbine Blade Section in a Transonic Turbine Cascade. 2013. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1387437733.

    MLA Style (8th edition)

  • Flegel, Ashlie. "Aerodynamic Measurements of a Variable-Speed Power-Turbine Blade Section in a Transonic Turbine Cascade." Master's thesis, Cleveland State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=csu1387437733

    Chicago Manual of Style (17th edition)

csu1387437733
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© 2013, some rights reserved.Creative Commons License Aerodynamic Measurements of a Variable-Speed Power-Turbine Blade Section in a Transonic Turbine Cascade by Ashlie Brynn Flegel is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Cleveland State University and OhioLINK.