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Simulation of Rising Bubbles Dynamics Using the Lattice Boltzmann Method

The main purpose of this thesis was to propose and test a new approach that captures the features of single and multiple bubbles dynamics using the Shan and Chen-type lattice Boltzmann method (LBM).
Two dimensional bubbles motions were simulated considering the buoyancy effect for which the topology of the bubble is characterized by the Eötvös (Eo), and Morton (M) numbers. A qualitative and quantitative validation were performed using the Level set method. Bubble shape deformation was captured and analysis based on terminal Reynolds number and degree of circularity show very good agreement with the experimental results and with available simulation results. In sum, this study presents crucial preliminary information to further analyze multiphase fluid flows in various contexts.

Identiferoai:union.ndltd.org:fiu.edu/oai:digitalcommons.fiu.edu:etd-1553
Date12 July 2011
CreatorsNgachin, Merlin
PublisherFIU Digital Commons
Source SetsFlorida International University
Detected LanguageEnglish
Typetext
Formatapplication/pdf
SourceFIU Electronic Theses and Dissertations

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