Concentration band dynamics in free-surface Couette flow of a suspension

  title={Concentration band dynamics in free-surface Couette flow of a suspension},
  author={Brian D. Timberlake and Jeffrey F. Morrisa},
Particle concentration banding has been studied by experiments in the flow driven by the inner cylinder of a partially filled concentric cylinder, or Couette, device. In this geometry, alternating bands of relatively concentrated and dilute particle fraction are observed along the axis. A small ratio of the inner to outer radius was used, with Ri /Ro50.29, andRi50.64 cm, resulting in concentration bands which were confined to the vicinity of the inner cylinder. This work examines the dynamics… CONTINUE READING
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