A Method for Testing Cascades with Converging Sidewalls

[+] Author and Article Information
G. Meauzé

Office National d’Etudes et de Recherches Aérospatiales (ONERA), 92320 Châtillon, France

J. Eng. Power 100(3), 457-464 (Jul 01, 1978) (8 pages) doi:10.1115/1.3446379 History: Received August 04, 1977; Online July 14, 2010


Cascade tests on a set-up equipped with converging lateral walls are more representative of the flow in a section of actual turbomachine than in those with two-dimensional-flow. The experiment is carried out at mid-span, where it is necessary to know the local area contraction evolution in order to get more representative data: for this purpose, a simple computation method has been developed and successfully applied, as shown by the comparison with experimental data. By means of successive approaches, the side wall shape can be defined so that a given area contraction evolution can be obtained at the center.

Copyright © 1978 by ASME
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