27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-4.2.1

NUMERICAL DESIGN AND OPTIMIZATION OF A NEW CASING TREATMENT FOR SHROUDED FANS

L. Soulat, S. Moreau*, P. Ferrand, S. Aubert**, M. Henner***
LMFA, France; *GAUS, France; **Fluorem SAS, Canada; ***Valeo Engine Cooling, France

Keywords: casing treatment, helicoidal grooving, shrouded fan

This study propose a new casing treatment for shrouded compressors. The device aims at reducing both the massflow and the swirl of the secondary flow through the gap. The treatment is an helicoidal grooving of the casing. It is examined and optimized with an application to a low-speed compressor

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