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Title:Modeling and Simulation of Bubbles and Particles
Author(s):Dorgan, Andrew James
Doctoral Committee Chair(s):Loth, Eric
Department / Program:Aerospace Engineering
Discipline:Aerospace Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Mechanical
Abstract:Finally, the new equation of motion was applied to air bubbles and sand particles of several different diameters. Particle-fluid interactions observed through flow-visualization, particle concentration, particle-wall interactions, and Lagrangian statistics were all considered. These results were interpreted and compared to heavy-particle results where appropriate. Particle deposition was found to be well-described by the heavy-particle model of Young & Leeming and root-mean-square relative velocities were found to also agree with previous heavy-particle work. A model for the latter is suggested for heavy-particles and found to work similarly well for low-density particles. Non-tracer behavior was observed for bubbles with small Stokes numbers, a result not expected based on heavy-particle expectations. Local clustering of particles was observed in certain fluid structures which may indicate the importance of modeling particle collisions in future studies.
Issue Date:2009
Description:171 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009.
Other Identifier(s):(MiAaPQ)AAI3362773
Date Available in IDEALS:2015-09-25
Date Deposited:2009

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