Effects of distributed roughness on crossflow instability through generalized resonance mechanisms

@article{He2018EffectsOD,
  title={Effects of distributed roughness on crossflow instability through generalized resonance mechanisms},
  author={Jiyang He and Adam Butler and Xuesong Wu},
  journal={Journal of Fluid Mechanics},
  year={2018},
  volume={858},
  pages={787 - 831}
}
Experiments have shown that micron-sized distributed surface roughness can significantly promote transition in a three-dimensional boundary layer dominated by crossflow instability. This sensitive effect has not yet been fully explained physically and mathematically. Past studies focused on surface roughness exciting crossflow vortices and/or changing the local stability characteristics. The present paper seeks possible additional mechanisms by investigating the effects of distributed surface… 
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