The paper presents detailed measurements of the midspan aerodynamic performance of a transonic turbine cascade at off-design conditions. The measurements were conducted for exit Mach numbers ranging from 0.5 to 1.2 and for Reynolds numbers from 4×105 to 106. The profile losses were measured for incidence values of +14.5°, +10°, +4.5°, 0°, and −10° relative to design. To aid in understanding the loss behaviour and to provide other insights into the flow physics, measurements of blade loading, exit flow angles, trailing-edge base pressures, and the Axial Velocity Density Ratio (AVDR) were also made. It was found that the profile losses at transonic Mach numbers can be closely related to the base pressure behaviour. The losses were also affected by the AVDR.
Skip Nav Destination
ASME Turbo Expo 2000: Power for Land, Sea, and Air
May 8–11, 2000
Munich, Germany
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7854-5
PROCEEDINGS PAPER
Aerodynamic Performance of a Transonic Turbine Cascade at Off-Design Conditions
D. B. M. Jouini,
D. B. M. Jouini
Carleton University, Ottawa, ON, Canada
Search for other works by this author on:
S. A. Sjolander,
S. A. Sjolander
Carleton University, Ottawa, ON, Canada
Search for other works by this author on:
S. H. Moustapha
S. H. Moustapha
Pratt & Whitney Canada Inc., Longueuil, QC, Canada
Search for other works by this author on:
D. B. M. Jouini
Carleton University, Ottawa, ON, Canada
S. A. Sjolander
Carleton University, Ottawa, ON, Canada
S. H. Moustapha
Pratt & Whitney Canada Inc., Longueuil, QC, Canada
Paper No:
2000-GT-0482, V001T03A052; 12 pages
Published Online:
August 4, 2014
Citation
Jouini, DBM, Sjolander, SA, & Moustapha, SH. "Aerodynamic Performance of a Transonic Turbine Cascade at Off-Design Conditions." Proceedings of the ASME Turbo Expo 2000: Power for Land, Sea, and Air. Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery. Munich, Germany. May 8–11, 2000. V001T03A052. ASME. https://doi.org/10.1115/2000-GT-0482
Download citation file:
19
Views
0
Citations
Related Proceedings Papers
Related Articles
Aerodynamic Performance of a Transonic Turbine Cascade at Off-Design Conditions
J. Turbomach (July,2001)
Midspan Flow-Field Measurements for Two Transonic Linear Turbine Cascades at Off-Design Conditions
J. Turbomach (April,2002)
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Introduction
Turbine Aerodynamics: Axial-Flow and Radial-Flow Turbine Design and Analysis
A Simple Carburetor
Case Studies in Fluid Mechanics with Sensitivities to Governing Variables