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Дисертації з теми "Environmental flow"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 25 липня 2025

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1

Goz, Caglayan. "Instream Flow Methodologies: Hydrological Environmental Flow Assessment In Pazarsuyu River." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615004/index.pdf.

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In Turkey with increasing energy demand by industrialization and urbanization, hydropower seemed to be the most environmental friendly and sustainable solution for the problem. However, hydropower has also environmental effects especially when hydropower projects are numerous on a single river, and they use almost entire water in the river. Environmental flow as a new term became popular in media with increased density of small hydropower projects in Turkey. It is the required flow in the part of diversion for Run-off River type of hydropower plant in order to protect health of the river<br>in

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2

Peng, Yong. "Lattice Boltzmann simulations of environmental flow problems in shallow water flows." Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/8233/.

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The lattice Boltzmann method (LBM) proposed about decades ago has been developed and applied to simulate various complex fluids. It has become an alternative powerful method for computational fluid dynamics (CFD). Although most research on the LBM focuses on the Navier-Stokes equations, the method has also been developed to solve other flow equations such as the shallow water equations. In this thesis, the lattice Boltzmann models for the shallow water equations and solute transport equation have been improved and applied to different flows and environmental problems, including solute transpor

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3

Regnier, Eva Dorothy. "Discounted cash flow methods and environmental decisions." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/24544.

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4

Petsul, Peter Haei. "Micro-flow injection analysis for environmental studies." Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322521.

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5

Durham, William McKinney. "Phytoplankton in flow." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/70868.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 111-120).<br>Phytoplankton are small, unicellular organisms, which form the base of the marine food web and are cumulatively responsible for almost half the global production of oxygen. While phytoplankton live in an environment characterized by ubiquitous fluid motion, the impacts of hydrodynamic conditions on phytoplankton ecology remain poorly understood. In this thesis, we propose two novel biophysica

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6

Cappiello, Alessandra 1972. "Modeling traffic flow emissions." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84328.

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7

Banijamali, Bahareh. "Development of a flow-condition-based interpolation 9-node element for incompressible flows." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34642.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2006.<br>Includes bibliographical references.<br>The Navier-Stokes equations are widely used for the analysis of incompressible laminar flows. If the Reynolds number is increased to certain values, oscillations appear in the finite element solution of the Navier-Stokes equations. In order to solve for high Reynolds number flows and avoid the oscillations, one technique is to use the flow condition-based interpolation scheme (FCBI), which is a hybrid of the finite element and the finite volume

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8

Schneur, Rina. "Scaling algorithms for multicommodity flow problems and network flow problems with side constraits." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13710.

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9

Murphy, Enda. "Longitudinal dispersion in vegetated flow." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34603.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2006.<br>Includes bibliographical references (p. 171-183).<br>Vegetation is ubiquitous in rivers, estuaries and wetlands, strongly influencing both water conveyance and mass transport. The plant canopy affects both mean and turbulent flow structure, and thus both advection and dispersion. Accurate prediction of the fate and transport of nutrients, microbes, dissolved oxygen and other scalars depends on our ability to quantify vegetative impacts. In this thesis, the focus is on longitudinal dispe

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10

Assemi, Shoeleh 1963. "Use of flow field-flow fractionation for the characterisation of humic substances." Monash University, Dept. of Chemistry, 2000. http://arrow.monash.edu.au/hdl/1959.1/9028.

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11

Duteau, Michel. "Phosphorus removal in a vertical up-flow constructed wetland." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119504.

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Accelerated eutrophication of freshwater ecosystems led by agricultural activities has raised concerns in Southern Quebec and other industrialized locales. Phosphorus being the main culprit, effort has been made to rationalize application and curtail exports of this nutrient with agricultural best management practices. Still, concentrations of phosphorus and nitrogen in typical tile drainage return flow wastewater exceeds the eutrophication-prevention criterion set by the Quebec Ministry of Environment (0.030 mg TP ∙L-1) and the ecosystem safeguard criterion suggested in the literature (1.10 m

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12

Aref, Lana A. 1971. "Flow and transport in wetland deposits." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9504.

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Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1999.<br>Includes bibliographical references.<br>At present, very little is known about the mechanisms that control flow and transport through wetland deposits. Therefore, the objective of this research was to investigate the factors that influenced flow in wetland soils. To accomplish this, Column Experiments, run on a specialized permeameter, were conducted on both re-sedimented and undisturbed wetland soil specimens. During these experiments, sodium chloride (NaCl) tracer was injected into t

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13

Hayes, Michael F. (Michael Francis). "Stimulating In situ groudwater bioremidiation via sparging : gas flow, groundwater flow, and mass transfer in the biosparge zone." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38755.

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14

Lagerblad, Lovisa. "Assessment of environmental flow requirements in Buzi River basin, Mozambique." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150870.

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Rivers belong to the world’s most complex ecosystems but increasing demands for water are degrading rivers worldwide. The increase in human populations and activities has resulted in an intense and difficult conflict between the development of rivers as a natural resource and their function as living ecosystems. It is now widely recognized that a naturally variable flow regime is required to sustain freshwater ecosystems. Many countries that experience river degradation have started to implement environmental flows, i.e. the unallocated flow purposely preserved in a river. The objectives of th

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15

Follett, Elizabeth (Elizabeth Marie). "Feedbacks between plants, flow, and particle fate." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104199.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Environmental flows carry a wide variety of particles that interact with vegetation. Vegetated canopies are anchored by sediment, release pollen and seeds to colonize new ground, rely on nutrients carried by sediment, and may be killed by disease spores. While the influence of vegetation on flow profiles has been investigated, the transport of particles within vegetated canopies remains poorly underst

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16

Stolp, Bernard Jan. "Determining mean transit times of groundwater flow systems." Thesis, The University of Utah, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3614458.

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<p> Water is the elementary component of life on Earth, and quantifying this resource is critical to understanding ecosystem viability on planetary, continental, and local scales. In a simplified partition of the Earthfs freshwater resources, 75% is ice at the north and south poles, 25% is groundwater, and 0.01% exists in lakes and streams. Mean transit time is a robust description of groundwater volume within the discrete aquifers that together make up the 25% of Earthfs freshwater. Mean transit time can be estimated using environmental tracer concentrations in springs and gaining streams. Th

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17

Karhunen, A. (Antti). "Traffic Flow Garner -rajapinnan hyödyntäminen liikennevalojärjestelmän liikenneteknisessä seurannassa ja kehittämisessä." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201604061380.

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Liikennevalot ovat keskeinen osa liikenneverkon toiminnallisuutta. Tällä hetkellä liikennevalojen liikenneteknisen toiminnan seurantaan ei ole olemassa erityisen hyviä laajoja alueita käsittäviä ja pitkäaikaiseen seurantaan soveltuvia työkaluja tai automatisoituja toimintoja. Liikennevalotietoja välittävä Dynniq:n kehittämä Traffic Flow Garner (TFG) -rajapinta antaa aivan uuden mahdollisuuden liikennevaloliittymien seurantaan. Sen välittämä yksityiskohtainen reaaliaikatieto sisältää opastinryhmien ja ilmaisimien tilatiedot sekä konfiguraatiotiedot, joista voidaan laskea useita sekä liikenneval

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18

Crouthamel, David Roger 1963. "In-situ flow testing of borehole plugs." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/291331.

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A cement borehole plug and a crushed tuff/bentonite clay mixture borehole plug were tested insitu in highly welded tuff. The hydraulic performance of the cement plug was evaluated through steady-state and transient hydraulic tests with a hydraulic conductivity in the range of 10⁻¹⁰ cm/s. A crushed tuff/bentonite mixture plug was tested through a steady-state flow test with a measured hydraulic conductivity of 10⁻⁹ cm/s. The plug was installed in a fractured borehole which was grouted to reduce the overall rockmass permeability. Installation procedures were evaluated in the laboratory prior to

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19

Autret, Arnaud. "Modular neural networks for analysis of flow cytometry data." Thesis, University of South Wales, 2003. https://pure.southwales.ac.uk/en/studentthesis/modular-neural-networks-for-analysis-of-flow-cytometry-data(49f3349b-e86a-4bfb-a689-c853323b6f2d).html.

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In predicting environmental hazards or estimating the impact of human activities on the marine ecosystem, scientists have multiplied the need for sample analysis. The classical microscopic approach is time consuming and wastes the talent and intellectual abilities of trained specialists. Therefore, scientists developed an automated optical tool, called a Flow Cytometer (FC), to analyse samples quickly and in large quantities. The flow cytometer has successfully been applied to real phytoplankton studies. However, analysis of the data extracted from samples is still required. Artificial Neural

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20

Kassab, Bassam George 1968. "Flow of grains in channels : the granualr jump." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80916.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, February 2000.<br>Includes bibliographical references (leaves 52-53).<br>by Bassam George Kassab.<br>S.M.

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21

Zhang, Xin Ph D. Massachusetts Institute of Technology. "Modeling transient flow in intermittent water supply System." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111551.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 91-96).<br>Water distribution systems in cities throughout South Asia (and many other countries) only supply water on an intermittent basis (currently averaging less than 5hrs/day in most Indian cities). Intermittent Water Supply (IWS) creates inequities in water availability and carries public health risks associated with the ingress of contaminants from the surrounding ground through flaws in the a

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22

Essiam, Albert K. "Stochastic flow and transport through multifractal porous media." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/84301.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.<br>Includes bibliographical references.<br>Stochastic theories of flow and transport in aquifers have relied on the linear perturbation approach that is accurate for flow fields with log-conductivity variance cr2 less than unity. Several studies have found that the linear perturbation ignores terms that have significant effects on the spectra of the hydraulic gradient VH and specific discharge q when (Y2 exceeds unity. In this thesis we study flow and transport when the hydraulic conduct

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23

Cheng, Zhao 1969. "Flow problems in air venting and air sparging." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9593.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.<br>Includes bibliographical references.<br>Soil Vapor Extraction (SVE) and Air Sparging have been used for site remediation for about ten years, but most of the past designs are based on experiences and numerical models. Understanding toward the physical problems is far from complete, and some simplified assumptions used in those models may not be true. In this thesis, we focus our attention on the hydrodynamic problems in SVE and air sparging. In Chapter One some basic concepts related t

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24

Savoie, Courtney Beth Young. "Arsenic Mobility and Compositional Variability in High-Silica Ash Flow Tuffs." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1012.

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Volcanic rocks typically have only low to moderate arsenic concentrations, none-the-less, elevated levels of arsenic in ground waters have been associated with pyroclastic and volcaniclastic rocks and sediments in many parts of the world. The potential for arsenic leaching from these deposits is particularly problematic as they often comprise important water-bearing units in volcanic terrains. However, the role that chemical and mineralogical variations play in controlling the occurrence and mobility of arsenic from pyroclastic rocks is largely unexplored. This study uses chemical and X-ray di

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25

Hernandez-Ochoa, Abel F. "Conditioning nonlocal steady-state flow on hydraulic head and conductivity through geostatistical inversion." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280279.

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Nonlocal moment equations allow one to render optimum predictions of flow in randomly heterogeneous media deterministically conditional on measured values of medium properties and to assess the corresponding predictive uncertainty. I present a geostatistical inverse algorithm for steady-state flow that makes it possible to further condition such predictions and assessments on measured values of hydraulic head and (or) flux. My algorithm is based on recursive finite-element approximations of exact first and second conditional moment equations. Computational efficiency is enhanced through the us

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26

Niu, Qian, and 牛倩. "An empirical study of environmental flow determination in Hong Kong streams." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43224118.

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27

Wang, Qiuchen, and Santiago Mompo. "Electric-road freight transport, Arlanda-Rosersberg logistic flow and environmental analysis." Thesis, KTH, Trafik och logistik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149534.

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The expected economic and social growth, joint with the increase on the demand of services and goods that this will cause, will become an environmental problem (emissions and noise) as well as a logistical problem (congestion) that needs to be solved. The transport sector has to reduce drastically the use of fossil fuels and Sweden’s goal is to achieve a fossil independent vehicle fleet by 2030. It is expected that 2/3 of the traffic volume of trucks in Sweden will be performed along electrified roads. The most efficient way to achieve this is to use electricity and now that the technology to

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28

Niu, Qian. "An empirical study of environmental flow determination in Hong Kong streams." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43224118.

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29

Barbour, Emily. "Quantitative modelling for assessing system trade-offs in environmental flow management." Phd thesis, Canberra, ACT : The Australian National University, 2015. http://hdl.handle.net/1885/109583.

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This research aims to better enable the management of environmental flows through exploring the opportunities and challenges in using quantitative models for decision making. It examines the development and application of ecological response models, river system models, and multi-objective optimisation for improved ecological outcomes and the identification of trade-offs. In doing so, the thesis endeavours to capture a deeper and more holistic understanding of uncertainty in the application of quantitative models, to assist in making more informed decisions in water resource management. The th

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30

Jacobs, Bruce Lee. "Effective properties of multiphase flow in heterogeneous porous media." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9697.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, February 1999.<br>Includes bibliographical references (leaves 218-224).<br>The impact of heterogeneity on multiphase fl.ow is explored using a spectral perturbation technique employing a stationary, stochastic representation of the spatial variability of soil properties. A derivation of the system's effective properties - nonwetting phase moisture content, capillary pressure, normalized saturation and permeability - was developed which is not specific as to the form of the permeability depende

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31

Kelly, Anna C. "Finite element modeling of flow through ceramic pot filters." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82817.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 54-55).<br>Pure Home Water (PHW) is an organization based in Tamale, Ghana that manufactures and distributes ceramic water filters. While many ceramic filter factories manufacture flowerpot-shaped filters, PHW has transitioned from the flowerpot shape, to a paraboloid shape, and finally to a hemispheric filter shape. The PHW factory conducts flow-rate testing as part of their quality control process and

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32

Zhang, Zhuqing. "No-flow underfill materials for environment sensitive flip-chip process." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/19084.

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33

Galloni, Susanna. "Regional flow model of west Cape Cod and optimization analysis." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43925.

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34

Grier, Nathaniel J. (Nathaniel Jedidiah) 1978. "Improved methods for solving traffic flow problems in dynamic networks." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84805.

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35

Barrantes, Analía Inés. "Turbulent boundary layer flow over two-dimensional bottom roughness elements." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42585.

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36

Tse, Rosanna. "A critical assessment of two phase flow characterization of soil." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/28178.

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37

Pokhrel, Sajjan. "Computational Modeling of A Williams Cross Flow Turbine." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1515428122798392.

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38

Ley, J. D. "An environmental and material flow analysis of the UK steel construction sector." Thesis, Cardiff University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.504959.

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39

Bohner, Richard H. Jr. "Definition of the mean environmental steering flow for TCM-90 tropical cyclones." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23615.

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Approved for public release; distribution is unlimited<br>A definition for the environmental steering flow in the vicinity of the TCM-90 tropical cyclones is sought by low-pass filtering the Naval Operational Global Atmospheric Prediction System deep-layer mean u- and v- velocity and geopotential height fields. One-dimensional and two-dimensional Fourier decompositions in a limited region (120(o) long) and in a global region are compared with six wavenumber low-pass filters (1-6, 1-9,...,1-21). The measure of goodness of the environmental steering flow interpolated to the storm position was

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40

Little, Stephen Nicholas. "The flow behaviour of non-Newtonian sludges." Thesis, University of Greenwich, 1998. http://gala.gre.ac.uk/6228/.

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A large body of data is analysed of the flow of concentrated sewage sludge through straight pipes. Mathematical models are obtained of the laminar and turbulent flow of each main category of sewage sludge. The sludges are modelled as time-independent, non-Newtonian relations between shear stress, rate of shearing strain, and solids concentration. Due to the inhomogeneity of sewage sludge, error analysis becomes pivotal to the data analysis, and options are examined for reducing the error of each model with one or more user-fitted parameters. Parameter estimation is discussed for viscous, time-

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41

Hogge, Joshua Ryan. "Achieving Uniform Flow Distribution in Compact Irrigation Splitter Boxes with High Flow Rates." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4630.

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In many irrigation systems and networks, there are multiple water users and shareholders who take their water from different locations along a single canal or pipeline. Often, irrigation splitter boxes are used to divert water to multiple shareholders from a single location. The splitter boxes, which can be small and compact, are generally installed at different locations along a piped irrigation supply line. The purpose of a splitter box is to split a specific amount of water so that each user receives their allotted portion, regardless of the flow rate in the system. Each splitter box usuall

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42

Whitley, Annie R. "Method Development for Detecting and Characterizing Manufactured Silver Nanoparticles in Soil Pore Water Using Asymmetrical Flow Field-Flow Fractionation." UKnowledge, 2012. http://uknowledge.uky.edu/pss_etds/9.

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Recent advances in nanotechnology have led to the production of materials with nanoscale dimensions (nm) and properties distinctly different from their bulk (>100 nm) counterparts. With increased use, it is inevitable that nanomaterials will accumulate in the environment and there is concern that the novel properties of nanomaterials could result in detrimental environmental and human health effects. In particular, there has been concern recently regarding the use of silver (Ag) based nanomaterials as antimicrobial agents in consumer and medical products. Current regulations dealing with the d

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43

Gassiat, Claire. "Simulating regional groundwater flow in layered, faulted sedimentary basins: implications for groundwater age and shale gas." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119745.

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Groundwater plays an important role in a wide range of geologic processes. Sedimentary basins are heterogeneous, layered and faulted which strongly impacts regional groundwater flow. An important concern is how anthropogenic alterations such as groundwater or shale gas development affect these complex systems. Heterogeneities are likely to impact groundwater age and affect geologic processes that depend on groundwater or solute fluxes. They may also enhance long term contamination of shallow aquifers from the fracturing of the target shale unit, as contaminants may migrate from the shale to sh

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44

Kondziolka, John M. (John Michael). "Feedbacks between flow, vegetation, deposition, and the implications for landscape development." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90051.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Flow and sedimentation around patches of vegetation are important to landscape evolution, and a better understanding of these processes would facilitate more effective river restoration and wetlands engineering. In wetlands and channels, patches of vegetation are rarely isolated and neighboring patches influence one another during their development. This patch-to-patch interaction, and its influence on

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Luhar, Mitul. "Analytical and experimental studies of plant-flow interaction at multiple scales." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78142.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 163-171).<br>Across scales ranging from individual blades to river reaches, the interaction between water flow and vegetation has important ecological and engineering implications. At the reach-scale, vegetation is often the largest source of hydraulic resistance. Based on a simple momentum balance, we show that the resistance produced by vegetation depends primarily on the fraction of the channel cross-s

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VecchiarelliI, Alessandra. "Further development and application of GEOFRAC flow to a geothermal reservoir." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97979.

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Thesis: Civ. E., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis. Page 174 blank.<br>Includes bibliographical references (pages 169-173).<br>GEOFRAC is a three-dimensional, geology-based, geometric-mechanical, hierarchical, stochastic model of natural rock fracture systems. The main characteristic of GEOFRAC is that is based on statistical input representing fracture patterns in the field in form of the fracture intensity P₃₂ (fracture area per volume) and the best estimate fracture size E(A). Recent develo

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Zhang, Xueyan Ph D. Massachusetts Institute of Technology. "Mechanics of exchange flow between open water and an aquatic canopy." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62392.

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Thesis (Ph. D. in Environmental Fluid Mechanics)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 121-126).<br>The presence of aquatic vegetation is a common feature in shallow water systems. It alters the dynamics of the system by producing additional drag and by generating differential heating between regions of vegetation and open water through the shading it provides. The differential heating creates density differences that drive flow between vegetated and open re

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Paonessa, Michael E. (Michael Edward) 1979. "A model for predicting air flow during in-situ air sparging." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/85753.

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Zong, Lijun. "Interactions among flow, sediment deposition and aquatic vegetation in a channel." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/70770.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 69-72).<br>Aquatic vegetation is commonly present in rivers in many forms. This thesis consists of two studies, which examine the flow structure around a patch of emergent, rigid vegetation in a laboratory channel. The vegetation patch is represented by an array of circular cylinders in a staggered arrangement. The first study investigates flow structure and deposition pattern associated with a long patch o

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Wang, Mingyu. "Discrete fracture fluid flow modeling and field applications in fractured rocks." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284182.

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Fluid flow modeling in fractured rocks is a complicated and important research and application topic in many fields such as geological, hydrogeological, environmental and petroleum engineering. Commonly used methods based on equivalent continuum assumption for fluid flow modeling can generally be applied directly to the porous geological media, but have limited applicability when the geological medium is dominated by fractures. It often happens that only limited time, cost, hydrogeological data and computer resources are available in solving a practical problem of the fluid flow modeling in fr

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