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IUTAM Symposium on Computational Approaches to Multiphase FlowUse of a Stochastic Method to Describe Dispersion and Deposition in an Idealized Annular Flow

IUTAM Symposium on Computational Approaches to Multiphase Flow: Use of a Stochastic Method to... [A stochastic representation of fluid turbulence has been developed to study the behavior of very dilute suspensions of solid spheres in a turbulent flow. Particular emphasis is given to the understanding of deposition in an idealized annular pattern. The accuracy of the stochastic method was checked by comparing with calculations done in a DNS at Reτ=150. The striking aspect of the study is that calculations of the dimensionless deposition constant in a horizontal channel are presented for VT+=0 to 3.0, Reτ=590 and τp+=0 to 20,000. For some runs it was necessary to use computation times of t+=2×108 in order to insure that a fully-developed condition was realized. Such an extensive study would not be possible if the turbulence was represented by a DNS.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

IUTAM Symposium on Computational Approaches to Multiphase FlowUse of a Stochastic Method to Describe Dispersion and Deposition in an Idealized Annular Flow

Part of the Fluid Mechanics and Its Applications Book Series (volume 81)
Editors: Balachandar, S.; Prosperetti, A.
Hanratty, Thomas J.; Mito, Yoichi
IUTAM Symposium on Computational Approaches to Multiphase Flow — Jan 1, 2006
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Publisher
Springer Netherlands
Copyright
© Springer 2006
ISBN
978-1-4020-4976-7
Pages
31 –38
DOI
10.1007/1-4020-4977-3_4
Publisher site
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Abstract

[A stochastic representation of fluid turbulence has been developed to study the behavior of very dilute suspensions of solid spheres in a turbulent flow. Particular emphasis is given to the understanding of deposition in an idealized annular pattern. The accuracy of the stochastic method was checked by comparing with calculations done in a DNS at Reτ=150. The striking aspect of the study is that calculations of the dimensionless deposition constant in a horizontal channel are presented for VT+=0 to 3.0, Reτ=590 and τp+=0 to 20,000. For some runs it was necessary to use computation times of t+=2×108 in order to insure that a fully-developed condition was realized. Such an extensive study would not be possible if the turbulence was represented by a DNS.]

Published: Jan 1, 2006

Keywords: Multiphase Flow; Langevin Equation; Bottom Wall; Stochastic Method; Solid Sphere

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