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Dissertations / Theses on the topic 'Hydraulic fluid flows'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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1

Bayón, Barrachina Arnau. "Numerical analysis of air-water flows in hydraulic structures using computational fluid dynamics (CFD)." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/90440.

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The new legal regulations derived from climate change dictate that hydraulic structures must be designed to handle flood events associated with return periods up to 10,000 years. This obviously involves adapting the existing infrastructure to meet such requirements. In order to avoid risks in the restitution of the flow discharged to rivers, such as bank overflows or streambed erosion and scour processes, hydraulic design must be supported by reliable tools capable of reproducing the behavior of hydraulic structures. In the work presented herein, a fully three-dimensional CFD model to reproduc
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2

Hamid, Bashiri Atrabi. "HYDRAULIC ANALYSIS OF TRANSIENT FLOWS WITH INTERFACE BETWEEN PRESSURIZED AND FREE SURFACE FLOWS AND ITS APPLICATIONS." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/202693.

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3

Nixon, William. "Unsteady friction under the influence of external flows, and the implications to transient-based leak detection methods /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20NIXON.

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4

Drofelnik, Jernej. "Massively parallel time- and frequency-domain Navier-Stokes Computational Fluid Dynamics analysis of wind turbine and oscillating wing unsteady flows." Thesis, University of Glasgow, 2017. http://theses.gla.ac.uk/8284/.

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Increasing interest in renewable energy sources for electricity production complying with stricter environmental policies has greatly contributed to further optimisation of existing devices and the development of novel renewable energy generation systems. The research and development of these advanced systems is tightly bound to the use of reliable design methods, which enable accurate and efficient design. Reynolds-averaged Navier-Stokes Computational Fluid Dynamics is one of the design methods that may be used to accurately analyse complex flows past current and forthcoming renewable energy
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5

Чех, Олег Юрійович, Олег Юрьевич Чех, Oleh Yuriiovych Chekh, Сергій Олегович Шарапов, Сергей Олегович Шарапов та Serhii Olehovych Sharapov. "Використання математичної моделі опису процесу релаксаційного пароутворення". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66535.

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Питання про утворення парової фази при русі недогрітої до насичення рідини у соплах досі до кінця не зрозуміле. Однак, більшість дослідників прийшли до висновку, що під час руху закипаючої рідини, пароутворення відбувається не в об'ємі, а поблизу поверхні стінок або на стінках, при збереженні в центральній частині сопла рідкого метастабільного ядра. Це обумовлено початковим зародженням парової фази у пристінній області потоку і дією інерційних сил.
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6

Dalziel, Stuart Bruce. "Two-layer hydraulics : maximal exchange flows." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292204.

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7

Al, Nasser Saleh Mohammed. "A comparison of electric and hydraulic approaches to fluid flow simulation and hydraulic parameters inversion." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107108.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 96-99).<br>History matching and prediction of future performance of hydrocarbon reservoirs and groundwater aquifers are considered some of the biggest challenges facing hydrologists and petroleum engineers. The complexity of the simulation method, in addition to the huge amount of input data, makes evaluating the reservoir performance expensive. The conventional reservoir history matching proc
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8

Pettersson, Henrik. "On valve controlled fluid power systems : flow amplifier and percussive rock drilling /." Linköping : Univ, 2002. http://www.bibl.liu.se/liupubl/disp/disp2002/tek767s.pdf.

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9

Leibinger, Julia [Verfasser]. "Modeling and Simulation of Fluid Flow in Flexible Hydraulic Tubes / Julia Leibinger." München : Verlag Dr. Hut, 2021. http://d-nb.info/1232847143/34.

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10

Zhu, Yi, Shuai Wang, Chao Zhang, and Huayong Yang. "Am-driven design of hydraulic manifolds: enhancing fluid flow and reducing weight." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71084.

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Selective laser melting (SLM), one type of metal additive manufacturing (AM) technology, uses a highintensity laser to selectively melt pre-spread metal powders by a layer-on-layer manner. The technology does not only provide a new way of manufacturing but also innovates product design methodology. In this study, a hydraulic block manifold is designed and manufactured using SLM. In this paper, we present an AM-driven design approach of hydraulic manifolds based on a case study. The target is not only to reduce weight but also to enhance fluid flow by optimizing fluid path to reduce pressure dr
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11

Waitschat, Arne, Frank Thielecke, Robert M. Behr, and Ulrich Heise. "Active Fluid Borne Noise Reduction for Aviation Hydraulic Pumps." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-199594.

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The aviation environment holds challenging application constraints for efficient hydraulic system noise reduction devices. Besides strong limits on component weight and size, high safety and reliability standards demand simple solutions. Hence, basic silencers like inline expansion chambers and Helmholtz-Resonators are state-of-the-art aboard commercial aircrafts. Unfortunately, they do not meet today’s noise attenuation aims regarding passenger comfort and equipment durability. Significant attenuation performance is expected from active concepts that generate anti-phase noise. However, such c
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12

Marani, Pietro, Massimo Martelli, Cesare Dolcin, and Silvia Gessi. "Orifices flow saturation in oil hydraulic applications." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71070.

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Even though the orifice is the simplest and most common control component in fluid power systems and cavitation is an already well-established topic in the scientific literature, the flow choking or saturation effect is largely overlooked in the common engineering practice. Most of the times the phenomenon is completely ignored, unless the peculiar hissing noise is observed at the test rig, giving a hint that something wrong is happening in the hydraulic system. Even then, the focus is just on the possible component damage induced by strong cavitation, while the functional implications – in te
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13

AlRefaie, Abdulaziz Mohammed. "Flow control around circular cylinder : ventilation holes method /." Connect to full text in OhioLINK ETD Center, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1260201547.

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Thesis (M.S.)--University of Toledo, 2009.<br>Typescript. "Submitted as partial fulfillment of the requirements for the Master of Science Degree in Mechanical Engineering." "A thesis entitled"--at head of title. Bibliography: leaves 51-54.
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14

Chang, Hong. "Hydraulic Fracturing in Particulate Materials." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4957.

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For more than five decades, hydraulic fracturing has been widely used to enhance oil and gas production. Hydraulic fracturing in solid materials (e.g., rock) has been studied extensively. The main goal of this thesis is a comprehensive study of the physical mechanisms of hydraulic fracturing in cohesionless sediments. For this purpose, experimental techniques are developed to quantify the initiation and propagation of hydraulic fractures in dry particulate materials. We have conducted a comprehensive experimental series by varying such controlling parameters as the properties of particulate ma
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15

Hallbom, Donald John. "Pipe flow of homogeneous slurry." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2399.

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The objective of this Thesis is to devise a system for the "rheology-based design" of non-settling (homogeneous) slurry pipelines that is more conducive to application by practicing engineers without impairing its accuracy or utility for research purposes. The cornerstone is the development of a new rheological model and constitutive equation for homogeneous slurry based on the aggregation/deaggregation of the suspended mineral particles. This “yield plastic” model is shown to describe a family of models that includes the Newtonian, Bingham plastic and Casson models as special cases. It also c
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16

Dardis, Orla A. "Numerical simulation of fluid flow in porous fractured rock : a lattice Boltzmann approach." Thesis, University of Ulster, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301442.

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17

Kasaragadda, Suresh Babu. "The theoretical flow ripple of an external gear pump /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418037.

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18

Van, der Merwe Joachim Christoffel. "The calculation of fluid flow through torque converter turbine at stall /." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1255.

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19

Ou, Zhiliang. "Numerical simulation of flow around vertical cylinders." University of Western Australia. School of Civil and Resource Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0185.

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Local scour around bridge piers can cause serious damages and structural failure to the bridge. Correct prediction of the scour is an important criterion for the engineering design. Though the subject has been investigated for many decades, the theoretical developments have been very limited due to the complicated interaction of three-dimensional flow and the sediment transport. This thesis concerns the flow around a vertical bottom mounted cylinder exposed to currents and is considered as the initial phase of a study towards modeling local scour around vertical bottom-mounted structures. The
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20

Oni, Taiwo Oluwasesan. "Numerical investigation of heat transfer and fluid flow in tubes induced with twisted tape inserts." Thesis, University of Glasgow, 2015. http://theses.gla.ac.uk/6237/.

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Heat energy is important to all aspects of life. Various industries including food processing plants, chemical processing plants, thermal power plants, refrigeration and air conditioning equipments, petrochemical plants, etc. are faced with the problems of effective utilization, conservation and recovery of heat. The production of heat exchangers involves huge investments for capital and operation costs. In view of this, it has become important to design heat exchangers that will be efficient and also save energy, cost and materials. Different techniques known as heat transfer enhancement are
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21

Han, Byunghyun. "Development of techniques for measuring water and fluid flow properties in solid waste in landfills." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 158 p, 2009. http://proquest.umi.com/pqdweb?did=1821286381&sid=4&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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22

Anwar, Shadab. "Lattice Boltzmann Modeling of Fluid Flow and Solute Transport in Karst Aquifers." FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/22.

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A novel modeling approach is applied to karst hydrology. Long-standing problems in karst hydrology and solute transport are addressed using Lattice Boltzmann methods (LBMs). These methods contrast with other modeling approaches that have been applied to karst hydrology. The motivation of this dissertation is to develop new computational models for solving ground water hydraulics and transport problems in karst aquifers, which are widespread around the globe. This research tests the viability of the LBM as a robust alternative numerical technique for solving large-scale hydrological problems. T
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23

Algadi, Abdualmagid. "Computational Fluid Dynamics (CFD) based investigations on the flow of capsules in vertical hydraulic pipelines." Thesis, University of Huddersfield, 2017. http://eprints.hud.ac.uk/id/eprint/34669/.

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The rapid depletion of power sources has remarkably impacted the transport sector, where the costs of the freight transportation are rising dramatically every year. Significant endeavours have been made to develop innovative means of transport that can be adopted for economic and environmental friendly operating systems. Transport pipelines consider one such alternative mode that can be used to transfer goods. Although the flow behaviour of a solidliquid mixture in hydraulic capsule pipeline is quite complicated, due to its dependence on a large number of geometrical and dynamic parameters, it
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24

Thein, Myint. "Experimental investigation of flow resistance and velocity distributions in a rectangular channel with large bed-roughness elements." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/19580.

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25

Dogan, Huseyin Ali. "Investigation Of Bit Hydraulics For Gasified Drilling Fluids." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/3/12604906/index.pdf.

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Accurate determination of the pressure losses at the bit is very important for drilling practices in petroleum industry. In the literature, there are several studies on determination of the pressure losses. Major focus is concentrated on single phase drilling fluids, which is far from accurate estimation of pressure losses for multiphase fluids, i.e., fluids including a liquid and a gas phase, at the bit. Some of these models are valid for multiphase fluids, however, they are either valid for very high gas flow rates, or developed using very strong assumptions. This study presents a mathemati
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26

Ritzi, Robert William. "The use of well response to natural forces in the estimation of hydraulic parameters." Diss., The University of Arizona, 1989. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1989_119_sip1_w.pdf&type=application/pdf.

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27

Ge, Liang. "Numerical Simulation of 3D, Complex, Turbulent Flows with Unsteady Coherent Structures: From Hydraulics to Cardiovascular Fluid Mechanics." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-11162004-125756/unrestricted/ge%5Fliang%5F200412%5Fphd.pdf.

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Thesis (Ph. D.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2005.<br>Yoganathan, Ajit, Committee Member ; Sturm, Terry, Committee Member ; Webster, Donald, Committee Member ; Roberts, Philip, Committee Member ; Sotiropoulos, Fotis, Committee Chair ; Fritz, Hermann, Committee Member. Includes bibliographical references.
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28

Khodier, Mohanad A. "Weir-Baffled Culvert Hydrodynamics Evaluation for Fish Passage Using Particle Image Velocimetry and Computational Fluid Dynamic Techniques." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/3078.

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Due to a recent increase in environmental awareness regarding fish passage through hydraulic constructions including culverts, an evaluation for the passage of wild brown trout through a weir-baffled prototype-scale culvert was performed under a variety of culvert slopes and discharge conditions. The influence of the sample fish population and the length of the individual fish on passage rates were investigated; the data showed that the brown trout fish passage sample size evaluated in this study (25 per test) was sufficiently large to minimize sample size dependency. Fish behavior while trave
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29

Chipongo, Kudzai. "Effects of lateral inflow on oxygen transfer and hydraulics in open channel flows." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2053.

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The design of channels or hydraulic structures requires the correct prediction of flow properties such as depth of flow. In uniform open channel flows, a one dimensional (1-D) approach which assumes hydrostatic pressure distribution, negligible air entrainment and uniform velocity in the direction of flow is often used. Spatially varied flow (SVF) is a special type of open channel flow in which the discharge increases or decreases along the channel due to lateral inflow or outflow, respectively. As a result, this intricate flow is associated with momentous turbulence and velocity fluctuations
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30

Elsheikh, Mutasim Mohamed. "A Numerical and Experimental Investigation of Flow Induced Noise In Hydraulic Counterbalance Valves." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5683.

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The main objective of this study is to explore the complex fluid flow phenomena that result in the generation of a high frequency noise in counterbalance valves through an experimental and numerical investigation of the flow. Once the influence of the different components involved in noise generation is established, a secondary objective is the introduction of design modifications that eliminate the undesired effect without altering the operation envelope or the performance of the valve. A hydraulic test bench was used to carry out an experimental investigation of the noise generation process.
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31

Pouchoulin, Sébastien. "Mélange des eaux à l'aval d'une confluence : Amélioration de la modélisation des flux de contaminant dans les cours d'eau et les réseaux d'assainissement." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI124.

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La thèse porte sur le mélange de deux écoulements à surface libre à l'aval de leur confluence. La finalité opérationnelle est de mieux paramétrer le mélange dans les modélisations de flux polluants dissous et particulaires dans les cours d’eau et les réseaux d’assainissement. Les objectifs scientifiques sont d'expliquer les grandes disparités observées dans la littérature sur l'efficacité de ce mélange, notamment en proposant une loi incluant les paramètres géométriques et hydrauliques de la confluence. Le travail comporte trois volets. Le premier est basé sur des expérimentations de terrain à
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32

Hawkins, Jared B. "Effect of Hydraulic Conductivity Heterogeneity on the Movement of Dense and Viscous Fluids in Porous Media." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1321978016.

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33

Martínez-García, Elvira. "Experimental and numerical study on the thermo hydraulic behaviour in a wavy plate heat exchanger using Newtonian and non Newtonian fluids." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271803.

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34

Dvořák, Jaroslav. "Hydraulický čistící stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228830.

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Purpose of this engineer thesis is project of machine grating with hydraulic driving clearing. Diplom thesis includes construction solution of hydraulic cleaner-machine and koncept of hydraulic circuit. A part of this work is design of possible hydraulic driving and working stuffing. All hydraulic components are choosen from catalogue of appropriate companies.
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35

Rodrigue-Gervais, Karen 1981. "Investigation of temporal scour development and flow dynamics around submerged deflectors in a laboratory flume." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116074.

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Although flow deflectors are routinely placed in streams to create fish pool habitat, there is dissent in the literature as to what constitutes for them an appropriate design height to ensure their success. Our objectives were to (1) examine the temporal evolution of bed topography around submerged deflectors in a laboratory flume, for different deflector heights and discharge; and (2) quantify the flow dynamics in their vicinity. Results indicate that, all else being equal, higher deflectors (characterized by less overtopping) produce a greater volume of fish pools. In contrast, over a fixed
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36

Montague, James. "Assessing The Probability Of Fluid Migration Caused By Hydraulic Fracturing; And Investigating Flow And Transport In Porous Media Using Mri." ScholarWorks @ UVM, 2017. http://scholarworks.uvm.edu/graddis/793.

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Hydraulic fracturing is used to extract oil and natural gas from low permeability formations. The potential of fluids migrating from depth through adjacent wellbores and through the production wellbore was investigated using statistical modeling and predic-tive classifiers. The probability of a hydraulic fracturing well becoming hydraulically connected to an adjacent well in the Marcellus shale of New York was determined to be between 0.00% and 3.45% at the time of the study. This means that the chance of an in-duced fracture from hydraulic fracturing intersecting an existing well is highly de
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37

Arizcun, Zúñiga Paula María. "Ram pump hydraulic air test. Pressure conditions and flow measurements: Experimental research and case study." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26897.

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This study consists of the development of a ram pump, which will allow the pumping of water without the need of external energy sources. It is considered an analysis of interest since, once it is finished; it can be applied in reality improving and facilitating different activities related to agriculture and health. Previous studies have been made related to the ram pump; however, in this case, it is intended to understand the system that has been built in the laboratory in order to find the best combination of parameters that will lead to obtain the highest possible efficiency.  The study wil
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38

Yildirim, Tugce. "Scrutinization Of Flow Characteristics Through Orifices." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612451/index.pdf.

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Orifices are essential devices for measurement and control of flow. It is important to define the flow field and understand the flow characteristics behind an orifice for the sake of reliability measures in many hydraulic engineering applications. Since analytical and experimental solutions are restricted, a numerical solution is obtained using volume of fluid (VOF) method with the CFD solver, FLUENT, for sharp crested orifices, orifice tubes and slots. The results are compared to the available data in the literature<br>also a large spectrum of data collection has been achieved.
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39

Lasher, Candice. "Application of fluid electrical conductivity logging for fractured rock aquifer characterisation at the University of the Western Cape's Franschhoek and Rawsonville research sites." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3729_1338541923.

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<p>&nbsp<br>Characterisation of fractured rock aquifers is important when dealing with groundwater protection and management. Fractures are often good conduits for water and contaminants, leading to high flow velocities and the fast spread of contaminants in these aquifers. A cost effective methodology is required for the characterisation of the role of individual fractures contributing to flow to boreholes in fractured rock aquifers. Literature shows that some of the conventional methods used to characterise hydraulic properties in fractured rock aquifers are expensive, complicated, time cons
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Chalfi, Toufik Yacine. "Pressure loss associated with flow area change in micro-channels." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/24725.

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41

Friedrich, Brian Karl II. "An Experimental Study of Volumetric Quality on Fluid Flow and Heat Transfer Characteristics for Two Phase Impinging Jets." Youngstown State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1463935537.

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42

Haltigin, Tim. "Three-dimensional numerical modeling of flow dynamics and investigation of temporal scour hole development around paired stream deflectors in a laboratory flume." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82249.

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A three-dimensional numerical model (PHOENICS) was used to investigate the role of stream deflector angle and length on the flow field in a rectangular laboratory flume. Subsequent bed topography surveys were performed to examine the role of obstruction angle on scour hole development over time. The model was capable of predicting laboratory velocity and turbulent kinetic energy measurements, performing better for flow over a flat stable bed than over a deformed sand bed. A new method of incorporating complex bed topography into a structured Cartesian mesh was developed in the process.
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43

Smith, Heather Dianne. "Flow and sediment dynamics around three-dimensional structures in coastal environments." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196261689.

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44

Massarotti, Giorgio, Cristian Ferrari, Esteban Codina Macia, and Massimiliano Ruggeri. "Mems sensors in hydraulics, an opportunity to create smart components." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71238.

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Modern electronic technologies allow for the design and production of Micro Electro-Mechanical Systems, also called MEMS. These microchips are widely used as sensors in many fields of application, also in embedded systems in heavy-duty and agricultural vehicles and in automotive applications. In addition to the classic uses of these sensors, new architectures and sensor topologies exploit electromechanical principles of great interest for the field of hydraulic applications. This paper presents some examples of the application of a new MEMS architecture based on self-oscillating microresonator
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45

McGregor, Peter Stanley. "Modelling the Effect of Suspended Bodies on Cavitation Bubbles near a Ridgid Boundary using a Boundary Integral Approach." Queensland University of Technology, 2003. http://eprints.qut.edu.au/15822/.

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Cavitation is the spontaneous vaporisation of a liquid to its gaseous state due to the local absolute pressure falling to the liquid's vapour pressure (Douglas, Gasiorek et al. 1995). Cavitation is present in a wide range of mechanical systems ranging from ship screws to journal bearing. Generally, cavitation is unavoidable and may cause considerable damage and efficiency losses to these systems. This thesis considers hydraulic systems specifically, and uses a modified Greens equation to develop a boundary integral method to simulate the effect that suspended solid bodies have on a single ca
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McGregor, Peter Stanley. "Modelling the effect of suspended bodies on cavitation bubbles near a rigid boundary using a boundary integral approach." Thesis, Queensland University of Technology, 2003. https://eprints.qut.edu.au/15822/1/Peter_McGregor_Thesis.pdf.

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Cavitation is the spontaneous vaporisation of a liquid to its gaseous state due to the local absolute pressure falling to the liquid's vapour pressure (Douglas, Gasiorek et al. 1995). Cavitation is present in a wide range of mechanical systems ranging from ship screws to journal bearing. Generally, cavitation is unavoidable and may cause considerable damage and efficiency losses to these systems. This thesis considers hydraulic systems specifically, and uses a modified Greens equation to develop a boundary integral method to simulate the effect that suspended solid bodies have on a single
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47

SABUNDJIAN, GAIANE. "Aplicação do método da expansão em funções hierárquicas na solução das equações de Navier-stokes para fluidos incompressíveis." reponame:Repositório Institucional do IPEN, 1999. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11624.

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Made available in DSpace on 2014-10-09T12:54:00Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:09:26Z (GMT). No. of bitstreams: 1 12431.pdf: 23287148 bytes, checksum: ca5f3b291fb81099ce731e9a131ce645 (MD5)<br>Tese (Doutoramento)<br>IPEN/T<br>Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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48

Shimizu, Juri, Takuya Otani, Kenji Hashimoto, and Atsuo Takanishi. "Simulation of an interlocking hydraulic direct-drive system for a biped walking robot." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71091.

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Biped robots with serial links driven by an electric motor experience problems because the motor and transmission are installed in each joint, causing the legs to become very heavy. Previous solutions involved robots using servo valves, a type of highly responsive proportional valve. However, high supply pressure is necessary to realize high responsiveness and the resulting energy losses are large. To address this problem, we proposed a hydraulic direct-drive system in which the pump controls the cylinder meter-in flow, while a proportional valve controls the meter-out flow. Furthermore, our h
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49

Blume, Martin [Verfasser]. "3D Flow Simulation for the Investigation of Cavitation and Its Relationship To Erosion, Turbulence and Primary Breakup in Hydraulic Components by Single-Fluid Multi-Phase Methods / Martin Blume." Düren : Shaker, 2021. http://d-nb.info/1238497381/34.

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50

Shinde, Pradeep R. "Investigation of Low Reynolds Number Flow and Heat Transfer of Louvered Surfaces." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/3038.

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This study focuses on the investigation of flow behavior at low Reynolds numbers by the experimental and numerical performance testing of micro-channel heat exchangers. An experimental study of the heat transfers and pressure drop of compact heat exchangers with louvered fins and flat tubes was conducted within a low air-side Reynolds number range of 20 < ReLp < 225. Using an existing low-speed wind tunnel, 26 sample heat exchangers of corrugated louver fin type, were tested. New correlations for Colburn j and Fanning friction f factor have been developed in terms of non-dimensional parameters
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