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A unified probability density function formulation to model turbulence modification in two-phase flow

Phys. Fluids 21, 105101 (2009); doi:10.1063/1.3231831

Published 7 October 2009

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Gaurav Anand and Patrick Jenny
Institute of Fluid Dynamics, ETH Zurich, Sonneggstrasse 3, Zürich CH-8092, Switzerland
In the present study, a unified probability density function formulation for capturing the phenomena of turbulence modification of the continuous phase due to the dispersed phase turbulence is presented. A stochastic model based on dispersed phase turbulence length scale has been proposed for the purpose. The model has been validated with experimental data [Poelma et al., “Particle fluid interactions in grid-generated turbulence,” J. Fluid Mech. 589, 315 (2007)] on the decay of turbulence of the flow seeded with ceramic particles in a vertical recirculating water channel. The obtained simulation results are in good agreement with the experimental data. Numerical experiments have been performed to investigate the influence of gravity on the decay of the continuous phase Reynolds stresses. For comparison, the influence of dispersed phase turbulence on the continuous phase turbulence without taking gravity into consideration has also been studied. ©2009 American Institute of Physics
History: Received 6 February 2009; accepted 5 August 2009; published 7 October 2009
Permalink: http://link.aip.org/link/?PHFLE6/21/105101/1
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KEYWORDS and PACS

Keywords
PACS
  • 47.27.nd
    Turbulent channel flow
  • 47.27.eb
    Statistical theories and models of turbulence
  • 47.55.-t
    Multiphase and stratified flows
  • 02.50.Fz
    Stochastic analysis
  • 47.60.Dx
    Flows in ducts and channels
  • 02.60.-x
    Numerical approximation and analysis
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
1070-6631 (print)   1089-7666 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (15)
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