Dissertations / Theses on the topic 'Deep water flow'
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Han, Jiangchen. "An approach for upscaling the flow effects of multiple deep-water genetic units." Thesis, Heriot-Watt University, 2015. http://hdl.handle.net/10399/3121.
Full textReynolds, Ben Christopher. "Neodymium and lead isotope time series from Atlantic ferromanganese crusts." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342540.
Full textChung, Shin Fun. "Characterisation of soft soils for deep water developments." University of Western Australia. School of Civil and Resource Engineering, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0079.
Full textHaque, Md Mominul. "Comparison of behaviour of 1520 mm (60 in.) concrete pipe with sidd design under deep cover." Ohio University / OhioLINK, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1176497142.
Full textVoeckler, Hendrik Maximilian. "Modeling deep groundwater flow through fractured bedrock in a mountainous headwater catchment using a coupled surface water - groundwater model, Okanagan Basin, British Columbia." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43539.
Full textRyan, Svenja [Verfasser], Torsten [Akademischer Betreuer] Kanzow, Torsten [Gutachter] Kanzow, and Rhein [Gutachter] Monika. "On the Flow of Modified Warm Deep Water toward the Filchner Ronne Ice Shelf, Weddell Sea, Antarctica / Svenja Ryan ; Gutachter: Torsten Kanzow, Rhein Monika ; Betreuer: Torsten Kanzow." Bremen : Staats- und Universitätsbibliothek Bremen, 2018. http://d-nb.info/1171420447/34.
Full textKrienen, Lisa [Verfasser], Thomas R. [Akademischer Betreuer] Rüde, Benavides Antonio [Akademischer Betreuer] Cardona, and Loera Hector [Akademischer Betreuer] Lopez. "Understanding deep groundwater flow systems to contribute to a sustainable use of the water resource in the Mexican Altiplano / Lisa Krienen ; Thomas R. Rüde, Antonio Cardona Benavides, Hector Lopez Loera." Aachen : Universitätsbibliothek der RWTH Aachen, 2018. http://d-nb.info/1195715005/34.
Full textColombo, Pedro. "Modelling dense water flows through sills in large scale realistic ocean models : demonstrating the potential of a hybrid geopotential/terrain-following vertical coordinate." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAU017/document.
Full textOverflows play an important role distributing the heat and salt fluxes in the ocean, feeding deep boundary currents and most of the world ocean deep waters. Therefore, an unrealistic representation of overflows in global models may have impacts over many aspects of the simulated state of the ocean.To achieve a realistic representation of overflows is still a challenge for ocean modelling. This work addresses this problem using the community ocean general circulation model NEMO with a regional configuration of the Denmark Strait Overflow (DSO) at eddying resolutions. This work first proposes a definition of the DSO in order to characterize its associated water masses and to find the main caveats in a control simulation that uses the most standard parameters of the commonly used global configurations of NEMO (e.g. Drakkar configurations).Thanks to this definition we then study the impacts on the DSO of a large number of model parameters through a range of eddy-permitting to eddy-resolving resolutions (e.g. 1/12° and 1/60°) in the classic z-coordinate system used in NEMO. Main findings were found increasing the horizontal and vertical resolution, but most model parameters have no significant impacts. In particular it was found that increasing vertical resolution without using a coherent horizontal resolution degrades the solution. The main reason is the EVD parameterisation that propagates the dense vein of fluid along a grid-slope, instead the topographic slope. Coherent and very high resolution both in the horizontal and in the vertical is needed in order to resolve Ekman bottom boundary layer dynamics and keep the EVD localized to the very bottom.We also study the representation of the DSO with a hybrid terrain-following (s) and geopotential (z) coordinate system and obtained considerable improvements for a relatively small increase in computational cost. Finally, we propose a mixed s-z vertical coordinate that relies on a local implementation of s-coordinates within the z-coordinate model, limited to the area where DSO waters are produced. This local implementation is such that it minimizes the effects of pressure gradient errors linked to this type of coordinate, smoothly connects to the global z-coordinate, and does not add any significant computational cost. The improvement of the DSO is found to be drastic.This work emphasizes the utility of adapting the vertical coordinate system to the main physical problem. A modeling challenge would be to have a vertical coordinate system that is locally adapted to the most critical ocean process
Zhang, Andi. "Numerical investigation of multiphase Darcy-Forchheimer flow and contaminant transport during SO₂ co-injection with CO₂ in deep saline aquifers." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49065.
Full textClesi, Vincent. "Formation de la Terre et de Mars : étude expérimentale et numérique." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22750/document.
Full textThe formation of the metallic planetary cores is a major event regarding to the evolution of physical and chemical properties of the telluric planets as we know it today. Indeed, the siderophile elements (i.e. which has affinities with metallic phases) abundances in planetary mantles is explained by the conditions of core-mantle segregation. Among these conditions, pressure, temperature and oxygen fugacity are the main ones controlling distribution of the elements between mantle and core. This distribution can only be explained by an equilibrium between metal and silicate obtained in a deep magma ocean, which implies high pressure and high temperature of equilibrium. Moreover, the oxygen fugacity must have varied during core-mantle segregation, in a reduced-to-oxidized path most probably. Another important parameter is whether or not water is present in the primordial magma ocean. Indeed, we now have more and more lines of evidences showing that the volatile elements, especially water, arrived during accretion and therefore during the core-mantle segregation, which means that water can have an effect on the latter phenomenon. Considering this hypothesis, we performed several high pressure-high temperature experiments which allowed us to model the formation of the core under hydrous conditions. These experiments demonstrated that water has a significant effect on the redox state evolution of planetary mantles. We use this redox evolution to constrain models of planetary accretions, based on a mix of EH and CI chondrites, showing a good agreement with models based on isotopic data. The output of these models is the maximum initial concentration in water on the Earth (1.2 -1.8 %wt) and on Mars (2.5-3.5 %wt). Furthermore, these experiments showed a lithophile behavior (i.e. which has affinities with silicated phases) of hydrogen at high pressures, contrary to previous studies. Therefore, the difference between high initial concentrations in water yielded by our accretion models and the estimated actual concentrations on the Earth and Mars (2000 ppm and 200 ppm, respectively) cannot be explained by a hydrogen reservoir in the core. Finally, to improve the models of core-mantle segregation, we showed by numerical simulations the important effect of the magma ocean viscosity on the equilibrium between planetary mantles and cores. it lead us to reevaluate the models of accretion based on experimental data, especially the maximum extent of magma oceans. The evolution of the magma ocean viscosity has therefore significant implications on the final composition of planetary cores (for instance on the sulfur, oxygen and silicon content of the Earth’s and Mars’ core)
Henderson, Samuel Straker. "Tracking deep-water flow on Eirik drift over the past 160 kyr linking deep-water changes to freshwater fluxes /." 2009. http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051018.
Full textChao, Wei-Ting, and 趙偉廷. "Flow field measurement of deep water breaking wave impact on a vertical wall." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/04807003799474299761.
Full text國立臺灣大學
工程科學及海洋工程學研究所
97
Deep water breaking impact on a vertical wall were investigated in this research. The breaking waves were generated by linearly-varying-frequency wave trains. A P.I.V. measurement system was used to record the particle motion in fluids, such that the instantaneous wave flow field can be calculated. Based on the measured results, qualitative descriptions of the variations of flow field around the vertical wall during breaking wave impact process were made in this research. It showed that due to a plunging breaker causes much more violated flow filed than a spilling breaker does an air bag entrapped during the plunging breaking process. At wave crest, a vortex generation was produced during breaking processes. After wave impacting on a vertical wall, water recedes and the mores with water, then leaves the region of the vortex measured flow filed. Using the measured velocity information near the vertical wall and the method of linear momentum conservation in a control volume, the pressure distribution on the vertical wall were calculated and distributed as a log law curve for spilling and plunging breaker cases. The obtained result was similar to the results obtained by Kirkgoz (1995) using pressure gauges measurements.
Lim, Ho Joon. "Experimental Study on Kinematics and Dynamics of Breaking Waves in Deep Water." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8501.
Full textLittlepage, John Stanley. "Use of well testing and multiple point statistics in analyzing deep water channel turbidite reservoirs." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-08-4120.
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Holder, Rachel. "Studies into the Initial Conditions, Flow Rate, and Containment System of Oil Field Leaks in Deep Water." Thesis, 2013. http://hdl.handle.net/1969.1/151119.
Full textZoeller, Khalhela. "Insights into the distribution and mobility of metals in the sheeted dike complex formed at fast-spreading ridges (Pito Deep, EPR)." Thesis, 2014. http://hdl.handle.net/1828/5264.
Full textGraduate
0996
0411
0372
Reaume, Jonathan Daniel. "Wave-Cavity Resonator: Experimental Investigation of an Alternative Energy Device." Thesis, 2015. http://hdl.handle.net/1828/6960.
Full textGraduate
0547
0548
reaumejd@uvic.ca