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Supersonic Cascade Studies. Part 1. Passage Studies
TOLEDO UNIV RESEARCH FOUNDATION OH
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An experimental study was made of supersonic flow through various convergent and convergent-divergant passage configurations. The details of the flows were examined by means of total and static pressure surveys and Schlieren photographs and the effects of some changes in passage geometry on the characteristics of the passages were observed. Based on the tests, some design criteria were determined for supersonic passages capable of operating at high static pressure ratios. It was concluded that long and narrow convergent- divergent passages are capable of producing a significant pressure rise without extensive separation in the divergent region. However, the values of obtainable pressure rise appears to be substantially lower than anticipated by early designers of supersonic compressor cascades.
APPROVED FOR PUBLIC RELEASE