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 20 of 180 for “"flow dynamics"”.
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Continuously Stratified Flow Dynamics Over a Hollow
… effects of a hollow on a continuously stratified flow. Measurements showed an acceleration of the near-bottom flow as it moved toward the deepest part of the hollows, in contrast to the deceleration expected from two-dimensional Bernoulli-type dynamics. The acceleration was attributed to lateral …
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The Flow Dynamics and Buttressing of Ice Shelves
In this thesis, I explore the flow dynamics associated with ice shelves confined within channels and the buttressing they provide to grounded ice. Ice shelves are the floating extensions of ice sheets and act as the interface between the ice sheet and the ocean. They form when ice flows out from …
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The influence of surface films on interfacial flow dynamics
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1997.
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Two-Phase Flow Dynamics by a Five-Equation Drift Flux Model
Made available in DSpace on 2017-07-06T18:49:00Z (GMT). No. of bitstreams: 3 Kim_Chulsoo_MS.pdf: 27877982 bytes, checksum: d3e665bc705fec3b391db5aa2f76cd57 (MD5) Kim_Chulsoo_MS_ABS.pdf: 402696 bytes, checksum: 4073dbfb74579e93909191cb257c0985 (MD5) license.txt: 4813 bytes, checksum: …
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Multiscale environmental flow dynamics: particle settling, turbulence modulation, and tornadic vortices
Environmental flows form the basis of processes that span sediment transport in rivers, drag reduction in pipelines, and the evolution of severe atmospheric vortices. Despite significant efforts to address related phenomena, a predictive, mechanistic description of how particles, non‑Newtonian …
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Time dependence of nonlinear flow dynamics of near hard sphere suspensions
The mechanical properties of near hard sphere suspensions are studied from low frequency to high frequency terminal regions as a function of frequency and strain. The volume fraction dependence of experimentally observable characteristic time scales are reported- the longest relaxation time and two …
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UNDERSTANDING THE FLOW DYNAMICS OF THE PEARL RIVER, MS, THROUGH HYDRODYNAMIC MODELING
… in estuarine waters. However, there are no flow measurement stations installed on East Pearl or West Pearl either at the river outlets or after the upstream bifurcation of the Pearl. This study aims to model the Lower Pearl River to understand the flow dynamics in the major branches, and to …
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Bedload Transport, Self Acceleration, Downstream Sorting, and Flow Dynamics of Turbidity Currents
… carried mostly as bedload. Succession sustained flows are allowed to create a deposit behind a barrier that simulates the downstream end of a minibasin. The flows are introduced in the supercritical regime; the downstream barrier forces an internal hydraulic jump to the subcritical regime. This …
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Comparison of Flow Dynamics and Bifurcation Angles in Tributary and Distributary Channel Networks
<p>The dynamics of channel mouth bifurcations on river deltas can be understood using theory developed in tributary channel networks. Bifurcations in groundwater-fed tributary networks have been shown to evolve dependent on diffusive ground water flow patterns</p> <p>directly adjacent to the …
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Flow Dynamics in Large River Basins: Self -Similar Network Structure and Scale Effects
… river-network geomorphology and the hydrodynamics of channel flow. In this research, the processes which contribute to the variance of the network hydrologic response are investigated by coupling the river network organization with hydraulic geometry relations, thereby relaxing the …
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Benthic Community Structure Response to Flow Dynamics in Tropical Island and Temperate Continental Streams
… have caused the modification of natural flow regimes worldwide. Hydrological alterations, such as dams, diversions, and channelizations, are associated with ecological change and known to have detrimental effects on benthic communities. As a whole, this dissertation investigated the …
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The Effects of Geography, Environment and Phylogeny on Community Assembly and Gene Flow Dynamics
… community composition and patterns of gene flow in a unique system of Atlantic rainforest and restinga (sandy coastal plains) habitats in Southeastern Brazil.</p><p>In chapter one I investigate how space and environment affect the population genetic structure and gene flow of Aechmea …
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Numerical simulation of fresh SCC flow in wall and beam elements using flow dynamics models
Récemment, il y a un grand intérêt à étudier les caractéristiques d'écoulement des suspensions dans différentes applications environnementales et industrielles, telles que les avalanches des neiges, les coulées de débris, les systèmes de transport et les processus d’écoulement des matériaux. En ce …
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Smoothed Particle Hydrodynamics method and flow dynamics: the case of lava numerical modeling and simulation
Lo Smoothed Particle Hydrodynamics è un metodo Lagrangiano mesh-free che sta riscuotendo interesse nel campo della fluidodinamica computazionale. Grazie alla sua natura, il metodo SPH è in grado di gestire fluidi complessi caratterizzati da reolgie non-Newtoniane, superfici libere, dipendenze …
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Exploring Controls on the Flow Dynamics of Devon Ice Cap using a Basal Friction Inversion
… which exhibits a variety of changes to flow dynamics in recent years. These include the surge of Southeast1 and Southeast2 Glaciers, which is suggested to be thermally-regulated. A cryo-hydraulic warming feedback may contribute to the acceleration during this surge as an additional …
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Study of gas flow dynamics in porous and granular media with laser-polarized ¹²⁹Xe NMR
… Nuclear Magnetic Resonance (NMR) studies of gas flow dynamics in porous and granular media by using laser-polarized ¹²⁹Xe . Two different physical processes, the gas transport in porous rock cores and the mass exchanges between different phases in fluidized granular systems, were investigated and …
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Multiphase Flow Dynamics in Confined Domains—A DNS Study of Bubbly, Thermal and Riblet-Induced Turbulence
… of multiphase and wall-bounded turbulent flows using high-fidelity direct numerical simulations (DNS), with an emphasis on the fundamental mechanisms governing heat transfer, turbulence modulation, and instability-driven transition. By systematically studying three canonical …
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