NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
New technology in turbine aerodynamics.Cursory review of some recent work that has been done in turbine aerodynamic research. Topics discussed include the aerodynamic effect of turbine coolant, high work-factor (ratio of stage work to square of blade speed) turbines, and computer methods for turbine design and performance prediction. Experimental cooled-turbine aerodynamics programs using two-dimensional cascades, full annular cascades, and cold rotating turbine stage tests are discussed with some typical results presented. Analytically predicted results for cooled blade performance are compared to experimental results. The problems and some of the current programs associated with the use of very high work factors for fan-drive turbines of high-bypass-ratio engines are discussed. Computer programs have been developed for turbine design-point performance, off-design performance, supersonic blade profile design, and the calculation of channel velocities for subsonic and transonic flowfields. The use of these programs for the design and analysis of axial and radial turbines is discussed.
Document ID
19730028046
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Glassman, A. J.
Moffitt, T. P.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 7, 2013
Publication Date
October 1, 1972
Subject Category
Aerodynamics
Meeting Information
Meeting: Turbomachinery Symposium
Location: College Station, TX
Start Date: October 24, 1972
End Date: October 26, 1972
Sponsors: Texas A & M University
Accession Number
73A12848
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available