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Wednesday, July 10 • 17:10 - 17:30
NUMERICAL AND EXPERIMENTAL RESEARCH OF THE CIRCUMFERENTIAL GROOVES CASING TREATMENT INFLUENCE ON PERFORMANCES OF THE FIRST HIGH LOADED COMPRESSOR STAGE

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This work numerically and experimentally studies the typical first high-loaded compressor Stage A-1 in two configurations: with smooth walls and with circumferential grooves casing treatments above the rotor blade. Characteristics of the high-pressure compressor are strongly dependant on fineness of its first high-loaded stage. Therefore, designing and testing of an individual stage is an important task. The casing treatments lead to an increase in gas dynamic parameters of Stage A-1 and a decrease in its pulsations. This can be explained by the fact that grooves generate additional vortices, interacting with the main tip leakage vortex. This non-stationary interaction leads to a weaker tip leakage vortex and an improvement of flow in the Stage.

Moderators
GG

Gwenael Gabard

Dr., LAUM, Le Mans Université

Authors

Wednesday July 10, 2019 17:10 - 17:30 EDT
Outremont 5
  T03 Aero… aircrft noise & vibr., SS02 Computational Aeroac

Attendees (6)