Transition to turbulence in particulate pipe flow

Details Transition to turbulence in particulate pipe flow Transition to turbulence in particulate pipe flow

2003-01-18

arxiv.org/abs/physics/0301043v1

Physical Review Letters 2003, 90 (1)

Physics

Fluid Dynamics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.90.014501

We investigate experimentally the influence of suspended particles on the transition to turbulence. The particles are monodisperse and neutrally-buoyant with the liquid. The role of the particles on the transition depends both upon the pipe to particle diameter ratios and the concentration. For large pipe-to-particle diameter ratios the transition is delayed while it is lowered for small ratios. A scaling is proposed to collapse the departure from the critical Reynolds number for pure fluid as a function of concentration into a single master curve.

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