Degree Type

Dissertation

Date of Award

2017

Degree Name

Doctor of Philosophy

Department

Mechanical Engineering

Major

Mechanical Engineering

First Advisor

Alberto Passalacqua

Abstract

Bubble columns are widely used in the chemical and pharmaceutical industries as gas--liquid contactors because of their simple construction and ability to provide high contact area for mass and heat transfer.

The design and scale up of bubble columns depends on heat/mass transfer and mixing characteristics provided by it. These two factors highly depend on the bubbly flow hydrodynamics of the column.

Although simple in construction, the bubbly flow hydrodynamics inside bubble columns are complex due the presence of turbulence and bubble--bubble interactions (coalescence, breakup), thus,

the development of accurate CFD (Computational Fluid Dynamics) models that describe bubbly flows are important and challenging.

Two-fluid models are widely used as CFD models for the prediction of bubbly flows in bubble columns due to its low computational cost.

In this thesis computational models are developed in order to improve the capabilities of two-fluid models in predicting bubbly flows in bubble column

Copyright Owner

Nithin Panicker

Language

en

File Format

application/pdf

File Size

204 pages

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