Turbulence modulation in dilute particle-laden flow

Matthias Mandø; M. F. Lightstone; Lasse Rosendahl; Chungen Yin; Henrik Sørensen

doi:10.1016/j.ijheatfluidflow.2008.12.005

Turbulence modulation in dilute particle-laden flow

Matthias Mandø, M. F. Lightstone, Lasse Rosendahl, Chungen Yin, Henrik Sørensen

AAU Energy

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Abstract

A new particle source term to account for the effect of particles on the turbulence equations based on the Euler/Lagrange approach is introduced and compared with existing models and experimental data. Three different sizes of particles are considered to cover the range of large particles, where augmentation of the carrier phase turbulence is expected, and small particles, for which attenuation is expected. The new model is derived directly from the balance equations of fluid flow and represents a combination of the so-called standard and consistent approaches. The performance of the new model surpasses that of the standard and consistent models and it is able to predict both the suppression and enhancement of fluid turbulence for small and large particles.

Original language	English
Journal	International Journal of Heat and Fluid Flow
Volume	30
Issue number	2
Pages (from-to)	331-338
Number of pages	8
ISSN	0142-727X
DOIs	https://doi.org/10.1016/j.ijheatfluidflow.2008.12.005
Publication status	Published - 19 Jan 2009

Keywords

Turbulence modulation
Gas-particle flow
Eulerian–Lagrangian
Particle-laden pipe flow
Dilute flow

UN SDGs

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10.1016/j.ijheatfluidflow.2008.12.005

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title = "Turbulence modulation in dilute particle-laden flow",

abstract = "A new particle source term to account for the effect of particles on the turbulence equations based on the Euler/Lagrange approach is introduced and compared with existing models and experimental data. Three different sizes of particles are considered to cover the range of large particles, where augmentation of the carrier phase turbulence is expected, and small particles, for which attenuation is expected. The new model is derived directly from the balance equations of fluid flow and represents a combination of the so-called standard and consistent approaches. The performance of the new model surpasses that of the standard and consistent models and it is able to predict both the suppression and enhancement of fluid turbulence for small and large particles.",

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T1 - Turbulence modulation in dilute particle-laden flow

AU - Mandø, Matthias

AU - Lightstone, M. F.

AU - Rosendahl, Lasse

AU - Yin, Chungen

AU - Sørensen, Henrik

PY - 2009/1/19

Y1 - 2009/1/19

N2 - A new particle source term to account for the effect of particles on the turbulence equations based on the Euler/Lagrange approach is introduced and compared with existing models and experimental data. Three different sizes of particles are considered to cover the range of large particles, where augmentation of the carrier phase turbulence is expected, and small particles, for which attenuation is expected. The new model is derived directly from the balance equations of fluid flow and represents a combination of the so-called standard and consistent approaches. The performance of the new model surpasses that of the standard and consistent models and it is able to predict both the suppression and enhancement of fluid turbulence for small and large particles.

AB - A new particle source term to account for the effect of particles on the turbulence equations based on the Euler/Lagrange approach is introduced and compared with existing models and experimental data. Three different sizes of particles are considered to cover the range of large particles, where augmentation of the carrier phase turbulence is expected, and small particles, for which attenuation is expected. The new model is derived directly from the balance equations of fluid flow and represents a combination of the so-called standard and consistent approaches. The performance of the new model surpasses that of the standard and consistent models and it is able to predict both the suppression and enhancement of fluid turbulence for small and large particles.

KW - Turbulence modulation

KW - Gas-particle flow

KW - Eulerian–Lagrangian

KW - Particle-laden pipe flow

KW - Dilute flow

U2 - 10.1016/j.ijheatfluidflow.2008.12.005

DO - 10.1016/j.ijheatfluidflow.2008.12.005

M3 - Journal article

SN - 0142-727X

VL - 30

SP - 331

EP - 338

JO - International Journal of Heat and Fluid Flow

JF - International Journal of Heat and Fluid Flow

IS - 2

ER -

Turbulence modulation in dilute particle-laden flow

Abstract

Keywords

UN SDGs

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