Design and performance of controlled-diffusion stator compared with original double-circular-arc statorThe capabilities of two stators, one with controlled-diffusion (CD) blade sections and one with double-circular-arc (DCA) blade sections, were compared. A CD stator was designed and tested that had the same chord length but half the blades of the DCA stator. The same fan rotor (tip speed, 429 m/sec; pressure ratio, 1.65) was used with each stator row. The design and analysis system is briefly described. The overall stage and rotor performances with each stator are compared, as are selected blade element data. The minimum overall efficiency decrement across the stator was approximately 1 percentage point greater with the CD blade sections than with the DCA blade sections.
Document ID
19880043550
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gelder, Thomas F. (NASA Lewis Research Center Cleveland, OH, United States)
Schmidt, James F. (NASA Lewis Research Center Cleveland, OH, United States)
Suder, Kenneth L. (NASA Lewis Research Center Cleveland, OH, United States)
Hathaway, Michael D. (NASA Lewis Research Center; U.S. Army, Aviation Research and Technology Activity, Cleveland OH, United States)