The Application of Controlled-Vortex Aerodynamics to Advanced Axial Flow Turbines

[+] Author and Article Information
T. E. Dorman, H. Welna, R. W. Lindlauf

Pratt & Whitney Aircraft, East Hartford, Conn.

J. Eng. Power 90(3), 245-250 (Jul 01, 1968) (6 pages) doi:10.1115/1.3609182 History: Received December 05, 1967; Online August 25, 2011


This paper describes a technique for improving turbine aerodynamic performance which has been made practical by advanced computer technology. This technique entails precise control of the blade row spanwise vortex distribution in other than a free-vortex plan in order to prevent excessive corner losses. Background data leading to the investigation of this technique are reviewed. The controlled-vortex technique was verified by a series of tests in a single-stage cold flow test rig. The results of these tests show that the controlled-vortex technique could be successfully applied to substantially improve turbine performance.

Copyright © 1968 by ASME
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