28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-3.10.4
ON THE EFFECT OF DISTRIBUTED ROUGHNESS ON TRANSITION OVER ROTOR-STATOR DEVICES
S. J. Garrett, J. Harris*, P. J. Thomas*
Univ. of Leicester, UK; *Univ. of Warwick, UK
Keywords: rotor-stator devices, boundary layer, transition, passive control
A study into the effects of distributed surface roughness on transition within rotor-stator devices is presented. Stability analyses of the BEK system with increasing surface roughness are completed and discussed in the context of experimental results. Roughness is expected to promote a bypass of the traditional cross-flow dominated transition mechanisms.
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