Particle spin in a turbulent shear flow | Zendy

P. H. Mortensen | Zendy; Helge I. Andersson | Zendy; J. J. J. Gillissen | Zendy; Bendiks Jan Boersma | Zendy

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Particle spin in a turbulent shear flow

Author(s) -

P. H. Mortensen,

Helge I. Andersson,

J. J. J. Gillissen,

Bendiks Jan Boersma

Publication year - 2007

Publication title -

physics of fluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.188

H-Index - 180

eISSN - 1089-7666

pISSN - 1070-6631

DOI - 10.1063/1.2750677

Subject(s) - physics , turbulence , particle (ecology) , mechanics , particle laden flows , classical mechanics , spin (aerodynamics) , shear flow , angular velocity , open channel flow , eulerian path , flow (mathematics) , lagrangian , reynolds number , thermodynamics , geology , oceanography , mathematical physics

The translational and rotational motions of small spherical particles dilutely suspended in a turbulent channel flow have been investigated. Three different particle classes were studied in an Eulerian-Lagrangian framework to examine the effect of the response times on the particle statistics. The results for the fluctuating particle velocities were consistent with earlier observations. The mean particle spin exceeded the mean fluid angular velocity in a region close to the channel walls. The fluctuating components of the particle spin were consistently lower than the corresponding fluid angular velocities for the heaviest particles.Multi-Scale PhysicsApplied Science

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