Turbulent Bubbly Flow

I. Mazzitelli

Turbulent Bubbly Flow

I. Mazzitelli

Physics of Fluids

Research output: Thesis › PhD Thesis - Research UT, graduation UT

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Abstract

Turbulent bubbly flow is investigated by calculating and quantifying the motion and the action of microbubbles in homogeneous, isotropic and stationary turbulence. Direct numerical simulation is employed for the flow Navier-Stokes equations and Lagrangian tracking is used for computing the bubble trajectories. The forces acting on bubbles are fluid acceleration plus added mass effects, drag, lift and buoyancy. They are taken into account by a point-force model, which is reasonable for bubble Reynolds numbers of order 1, that correspond to microbubbles of diameter ~ 200µm in water (¿ ~ 10¿2cm2/s and g = 981cm/s2).

Original language	Undefined
Supervisors/Advisors	Lohse, Detlef, Supervisor
Award date	25 Jun 2003
Place of Publication	Enschede
Publisher	Twente University Press (TUP)
Print ISBNs	9036519241
Publication status	Published - 25 Jun 2003

Keywords

IR-38656
METIS-212138

Access to Document

t0000026
open

Cite this

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title = "Turbulent Bubbly Flow",

abstract = "Turbulent bubbly flow is investigated by calculating and quantifying the motion and the action of microbubbles in homogeneous, isotropic and stationary turbulence. Direct numerical simulation is employed for the flow Navier-Stokes equations and Lagrangian tracking is used for computing the bubble trajectories. The forces acting on bubbles are fluid acceleration plus added mass effects, drag, lift and buoyancy. They are taken into account by a point-force model, which is reasonable for bubble Reynolds numbers of order 1, that correspond to microbubbles of diameter ~ 200µm in water (¿ ~ 10¿2cm2/s and g = 981cm/s2).",

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year = "2003",

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AU - Mazzitelli, I.

PY - 2003/6/25

Y1 - 2003/6/25

N2 - Turbulent bubbly flow is investigated by calculating and quantifying the motion and the action of microbubbles in homogeneous, isotropic and stationary turbulence. Direct numerical simulation is employed for the flow Navier-Stokes equations and Lagrangian tracking is used for computing the bubble trajectories. The forces acting on bubbles are fluid acceleration plus added mass effects, drag, lift and buoyancy. They are taken into account by a point-force model, which is reasonable for bubble Reynolds numbers of order 1, that correspond to microbubbles of diameter ~ 200µm in water (¿ ~ 10¿2cm2/s and g = 981cm/s2).

AB - Turbulent bubbly flow is investigated by calculating and quantifying the motion and the action of microbubbles in homogeneous, isotropic and stationary turbulence. Direct numerical simulation is employed for the flow Navier-Stokes equations and Lagrangian tracking is used for computing the bubble trajectories. The forces acting on bubbles are fluid acceleration plus added mass effects, drag, lift and buoyancy. They are taken into account by a point-force model, which is reasonable for bubble Reynolds numbers of order 1, that correspond to microbubbles of diameter ~ 200µm in water (¿ ~ 10¿2cm2/s and g = 981cm/s2).

KW - IR-38656

KW - METIS-212138

M3 - PhD Thesis - Research UT, graduation UT

SN - 9036519241

PB - Twente University Press (TUP)

CY - Enschede

ER -