Results 11 to 20 of about 153,374 (300)

Numerical Simulation of Hold-up and Velocity Profiles for Two-phase Developed Flows in a Column

open access: yesChemical Engineering Transactions, 2021
The purpose of this article is to simulate and analyse two-phase fluid dynamics in a bubble column, through two different numerical approaches, in a fast and effective way, to minimize project costs and increase productivity.
Pâmela Palhares, Reginaldo Guirardello
doaj   +1 more source

AN INVESTIGATION OF THE EFFECT OF INITIAL BUBBLE DIAMETER ON THE BUBBLE TRAJECTORY IN THE FLOTATION COLUMN CELL USING CFD SIMULATION

open access: yesRudarsko-geološko-naftni Zbornik, 2022
The effect of initial bubble diameter on the bubble motion pattern in a flotation column has been studied by the twophase computational fluid dynamics (CFD) method. The two-phase simulations have been done using the volume of a fluid (VOF) model in ANSYS®
Narjes Khorasanizadeh   +2 more
doaj  

Investigation of Heat Transfer Parameters of a Bundle of Heaters in a Simple Bubble Column Reactor Using CFD Method

open access: yesJournal of Chemical and Petroleum Engineering, 2015
Bubble columns are gas- liquid contactors that are widely used in chemical and bio- chemical industries. High mixing that result in high heat and mass transfer rates are amongst their advantages.
Rahbar Rahimi, Somayeh Hajghani
doaj   +1 more source

Bubble properties of heterogeneous bubbly flows in a square bubble column [PDF]

open access: yesAIP Conference Proceedings, 2010
The present work focuses on the measurements of bubble properties in heterogeneous bubbly flows in a square bubble column. A four-point optical fibre probe was used for this purpose. The accuracy and intrusive effect of the optical probe was investigated first.
W. Bai   +7 more
openaire   +2 more sources

Development of modeling and simulation of bubble‐liquid hydrodynamics in bubble column

open access: yesEnergy Science & Engineering, 2020
In the present work, the investigation on strategies to alleviate the cell death in terms of bubble‐liquid two‐phase hydrodynamics in bubble column was performed using the modeling and numerical simulation approaches. A multifluid bubble‐liquid turbulent
Yang Liu, Li Zhang, Lixing Zhou
doaj   +1 more source

Improving Practical Performance of Single-tip-optical-fibre Probing for Measurement of Bubble-Swarm Motion and Properties in a Large Diameter Bubble Column

open access: yesChemical Engineering Transactions, 2013
Bubble column reactors are frequently applied to chemical plants and other industrial plants. To elucidate the practical properties of the bubble columns, the heat and mass transfer phenomena in consideration of the average bubble diameters and average ...
Y. Mizushima, T. Saito
doaj   +1 more source

Deposition and transport of graphene oxide in saturated and unsaturated porous media [PDF]

open access: yes, 2013
In this work, sand and bubble column experiments were conducted to explore the deposition mechanisms of graphene oxide (GO) particles in porous media with various combinations of moisture content and ionic strength.
Gao, Bin   +6 more
core   +3 more sources

Influence of drag closures and inlet conditions on bubble dynamics and flow behavior inside a bubble column

open access: yesEngineering Applications of Computational Fluid Mechanics, 2017
In this paper, the hydrodynamics of a bubble column is investigated numerically using the discrete bubble model, which tracks the dispersed bubbles individually in a liquid column.
Amjad Asad   +2 more
doaj   +1 more source

Study of Bubble Size, Void Fraction, and Mass Transport in a Bubble Column under High Amplitude Vibration

open access: yesChemEngineering, 2018
Vertical vibration is known to cause bubble breakup, clustering and retardation in gas-liquid systems. In a bubble column, vibration increases the mass transfer ratio by increasing the residence time and phase interfacial area through introducing kinetic
Shahrouz Mohagheghian   +3 more
doaj   +1 more source

Bubble size distributions and shapes in annular gap bubble column [PDF]

open access: yes, 2016
An understanding of the bubble properties, size distributions and shapes is of fundamental importance for comprehending flow dynamics and mass transfer phenomena in bubble column reactors.
Besagni, Giorgio, Inzoli, Fabio
core   +1 more source

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