Particle Entrainment in Spherical-Cap Wakes

Particle Entrainment in Spherical-Cap Wakes

In this work we study the preferential concentration of small particles in the turbulent wake behind a spherical-cap object. We present a model predicting the mean particle concentration in the near-wake as a function of the characteristic Stokes number of the problem, the turbulence level and the F...

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Veröffentlicht in:Journal of physics. Conference series 2011-12, Vol.318 (5), p.052025-9
Hauptverfasser: Warncke, Norbert G W, Delfos, René, Ooms, Gijs, Westerweel, Jerry
Format: Artikel
Sprache:eng
Schlagworte:
Computational fluid dynamics
Entrainment
Fluid flow
Froude number
Mathematical models
Particles (of physics)
Physics
Spherical caps
Stokes number
Turbulence
Turbulent wakes
Wakes
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Beschreibung
Zusammenfassung:In this work we study the preferential concentration of small particles in the turbulent wake behind a spherical-cap object. We present a model predicting the mean particle concentration in the near-wake as a function of the characteristic Stokes number of the problem, the turbulence level and the Froude number. We compare the model with our experimental results on this flow, measured in a vertical water tunnel.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/318/5/052025