Influence of particles on the transition to turbulence in pipe flow | Zendy

Jean-Philippe Matas | Zendy; Jeffrey F. Morris | Zendy; Élisabeth Guazzelli | Zendy

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Influence of particles on the transition to turbulence in pipe flow

Author(s) -

Jean-Philippe Matas,

Jeffrey F. Morris,

Élisabeth Guazzelli

Publication year - 2003

Publication title -

philosophical transactions of the royal society a mathematical physical and engineering sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.074

H-Index - 169

eISSN - 1471-2962

pISSN - 1364-503X

DOI - 10.1098/rsta.2003.1173

Subject(s) - turbulence , reynolds number , mechanics , particle (ecology) , flow (mathematics) , dispersity , particle size , pipe flow , volume fraction , physics , materials science , thermodynamics , chemistry , geology , oceanography , polymer chemistry

We investigate by experiment the influence of suspended solids upon the transition to turbulence in pipe flow. The particles are monodisperse and neutrally buoyant with the liquid. The role of the particles on the transition depends upon both the volume fraction, phi, and particle size. Below a critical particle diameter, particles alter the transition to larger critical Reynolds numbers for all phi. In contrast to this, larger particles move the transition to smaller Reynolds numbers for small phi, but they delay the transition at larger concentration.

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