Trains of particles in finite-Reynolds-number pipe flow

Jean-Philippe Matas (1) , A. Glezer (2) , Elisabeth Guazzelli (2) , Jeffrey F. Morris

1 LEGI - Laboratoire des Écoulements Géophysiques et Industriels [Grenoble]
2 IUSTI - Institut universitaire des systèmes thermiques industriels

In finite-Reynolds-number pipe flow, we have observed long-lived trains of particles aligned with the flow. These trains are located on the Segré–Silberberg equilibrium position which is an annulus close to the wall at the large Reynolds numbers investigated. The effect seems to be controlled by inertia and more precisely by the particle Reynolds number.

Domaines: Mécanique des fluides [physics.class-ph]; Mécanique des fluides [physics.class-ph]

Jean-Philippe Matas, A. Glezer, Elisabeth Guazzelli, Jeffrey F. Morris. Trains of particles in finite-Reynolds-number pipe flow. Physics of Fluids, 2004, 16 (11), pp.4192-4195. ⟨10.1063/1.1791460⟩. ⟨hal-00252135⟩