The effect of pulsation frequency on transition in pulsatile pipe flow

@article{Xu2018TheEO,
  title={The effect of pulsation frequency on transition in pulsatile pipe flow},
  author={Duo Xu and Marc Avila},
  journal={Journal of Fluid Mechanics},
  year={2018},
  volume={857},
  pages={937 - 951}
}
  • Duo XuM. Avila
  • Published 25 March 2018
  • Physics
  • Journal of Fluid Mechanics
Pulsatile flows are common in nature and in applications, but their stability and transition to turbulence are still poorly understood. Even in the simple case of pipe flow subject to harmonic pulsation, there is no consensus among experimental studies on whether pulsation delays or enhances transition. We here report direct numerical simulations of pulsatile pipe flow at low pulsation amplitude $A\leqslant 0.4$ . We use a spatially localized impulsive disturbance to generate a single turbulent… 

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