Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Multiphase hydrodynamics"”.
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Multiphase Hydrodynamics in Flotation Systems
Flotation is a complex, multiphase process used to separate minerals. Four problems central to the fundamentals of the flotation process were studied. A multiphase grid turbulence experiment was conducted to verify particle collision models. The slip velocities of solid particles and bubbles were …
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Continuous processing of multiphase reactions for pharmaceutical applications
… to single-phase reaction, transformation of multiphase reactions from batch to continuous flow still remains cumbersome due to complicated multiphase hydrodynamics, mass transfer, interfacial reaction kinetics, and potential clogging issues of solids.
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Quantitative modeling and characterization of hydrodynamics and transport in multiphase microreactors
… production. Among the many chemical reactions, multiphase reactions constitute a major category with important industrial applications, and microreactors have been shown to effectively enhance the efficiency of such reactions. However, compared to single-phase flow chemistry systems, many …
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Investigation of fluidized bed systems using coupled DEM-CFD framework
… forces like drag and pressure. Capturing this multiphase phenomenon requires modeling strategies that possess good fidelity over a range of scales. Discrete Element Modeling (DEM) coupled with Computational Fluid Dynamics (CFD) provides a good platform to analyze the complex coupled multiphase …
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Pore-scale Interfacial and Transport Phenomena in Hydrocarbon Reservoirs
… and requires a thorough understanding of the multiphase interfacial and transport phenomena in these reservoirs. This dissertation performs pore-scale studies of interfacial thermodynamics and multiphase hydrodynamics in shale reservoirs and conventional oil-brine-rock (OBR) systems. In shale …
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Computational Fluid Dynamics Modeling and Simulations of Fluidized Bed Reactors for Chemical Looping Combustion
… future CLC simulations.</p><p>Simulations of the multiphase flow with chemical reactions in a spouted bed fuel reactor for coal-direct CLC are performed based on the Lagrangian particle tracking approach. The Discrete Element Method (DEM) provides the means for tracking the motion of individual …
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Experimental and CFD–PBM investigation of an agitated bioreactor using a dual helical ribbon impeller
… bioreactor, its working temperature, pH and the hydrodynamics of a system need to be studied. A considerable amount of literature has been published regarding the hydrodynamics of anaerobic digesters. Further, several studies have explored the factors thought to influence the hydrodynamics of …