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Dissertations / Theses on the topic 'Open water channel'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Bayat, David, and Fabian Grönvik. "Demonstration station for open water channel flow." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276582.

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Once a year an event is being held at the fluid physics lab at KTH. One of the main purposes of this event is to awaken an interest in the visiting students from other universities, by demonstrating fluid physics phenomena. Showing the transition from laminar to turbulent flow in an open water channel is one of the demonstrations. This will give the students a feel for the theoretical Reynolds number. The existing water table used for this purpose was lacking in some areas. The purpose of this project is to construct, design and test a rig for openwater channel flow which can be used for the e

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2

Dvorak, Joseph Scot. "An optical water velocity sensor for open channel flows." Diss., Kansas State University, 2012. http://hdl.handle.net/2097/13979.

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Doctor of Philosophy<br>Department of Biological and Agricultural Engineering<br>Naiqian Zhang<br>An optical sensor for determining water velocity in natural open channels like creeks and rivers has been designed and tested. The sensor consists of a plastic body which is shaped so that water flows through a U-shaped channel into which are mounted LEDs and matching phototransistors at various angles. A small amount of dye is injected into the water just upstream of two sets of LEDs and phototransistors which are spaced 4 cm apart. The time delay between the dye’s effects on these signals depend

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3

Martin, Michael D. "Collection of Micron Particles in a Continuous Open Water Channel System." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1313756062.

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4

Byakika, Stephen Nyende. "Modelling of Pressurised Water Supply Networks that May Exhibit Transient Low Pressure - Open Channel Flow Conditions." Thesis, Vaal University of Technology, 2011. http://hdl.handle.net/10352/421.

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D. Tech. (Department of Civil Engineering and Building, Faculty of Engineering and Technology), Vaal University of Technology<br>Growing demand for water due to increasing populations, industrialisation and water consuming lifestyles puts stress on existing water supply systems. To cater for the rising demand, water distribution networks are expanded beyond their design capacities and this creates transient “low-pressure-open-channel flow” (LPOCF) conditions. Current water supply models use “demand driven approach” (DDA) methodology which is not able to simulate transient LPOCF conditions, tha

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5

Biglari, Bahram. "Turbulence modeling of clear-water scour around bridge abutment in compound open channel." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/21780.

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6

Ishida, Kei. "Modeling Open Channel Flows in Locally One-Dimensional Domain Based on Shallow Water Equations." Kyoto University, 2012. http://hdl.handle.net/2433/157690.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第16899号<br>農博第1915号<br>新制||農||997(附属図書館)<br>学位論文||H24||N4660(農学部図書室)<br>29574<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授河地利彦, 教授村上章, 教授川島茂人<br>学位規則第4条第1項該当

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7

Zhang, Yi. "Numerical modeling of shock wave propagation and contaminant fate and transport in open channel networks." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/20159.

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8

Hennessey, Thomas V. (Thomas Vincent) III. "The design and construction of an open channel recirculating water tank for the study of biological hydrocarbons." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32890.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.<br>This project chronicles the design and construction of a small scale recirculating water tank for the purpose of studying biological hydrodynamics. Currently available systems were analyzed and studied prior to developing a new, cost effective design that provides laminar flow through a two foot test section. Construction details provide the information for duplicating a low cost water tank for fluid flow and visualization.<br>by Thomas V. Hennessey, III.<br>S.B.

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9

Chen, Chunfang. "HIGH ORDER SHOCK CAPTURING SCHEMES FOR HYPERBOLIC CONSERVATION LAWS AND THE APPLICATION IN OPEN CHANNEL FLOWS." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_diss/314.

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Many applications in engineering practice can be described by thehyperbolic partial differential equations (PDEs). Numerical modeling of this typeof equations often involves large gradients or shocks, which makes it achallenging task for conventional numerical methods to accurately simulate suchsystems. Thus developing accurate and efficient shock capturing numericalschemes becomes important for the study of hyperbolic equations.In this dissertation, a detailed study of the numerical methods for linearand nonlinear unsteady hyperbolic equations was carried out. A new finitedifference shock cap

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10

Thorburn, John M. "HYDRAULIC EFFECTS OF PERPENDICULAR WATER APPROACH VELOCITY ON METER GATE FLOW MEASUREMENT." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2190.

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Accurate flow measurement is required to effectively manage water resources. California Senate Bill X7-7 (SB X7-7), legislates this need by requiring agricultural water providers serving areas greater than 25,000 acres to develop an Agricultural Water Management Plan (AWMP) and adopt pricing based at least partly on volumetric water deliveries (DWR, 2009). This study focused on two of the most common flow measurement/flow control devices used in California open channel water conveyance systems: the circular meter gate and the rectangular meter gate. Testing was conducted on three Armco-type (r

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11

THIN, THWE THWE. "FUNDAMENTAL STUDY ON UNDULAR AND DISCONTINUOUS HYDRAULIC JUMPS BY MEANS OF ＡSIMPLIFIED MOMENTUM EQUATION". Kyoto University, 2020. http://hdl.handle.net/2433/259024.

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12

Yilmaz, Aslican Nazli. "Hydraulic Characteristics Of Tyrolean Weirs." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612780/index.pdf.

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Tyrolean type water-intake structures are widely used on mountain rivers to provide water to hydropower stations. The main concern encountered in these kinds of structures is the amount of water diverted from the main channel and sediment carried by this flow. The diverted flow should not be less than the design discharge of the hydropower station and the amount of the sediment entering the hydraulic system should be minimum. In this study a physical model of a Tyrolean weir was constructed at the Hydromechanics Laboratory and by varying the dimensions of the various components of this system<

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13

Midboe, Finn, and Håkan Persson. "Simulering av översvämningar i Byälven." Thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88868.

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<p>Severe floods caused by heavy autumn rains in year 2000 raised the question whether measures to reduce the damage from high water levels, in the area surrounding lake Glafsfjorden and along the river Byälven down to lake Vänern, are possible. One option is to reduce flow resistance along the river and thereby lower the maximum water level a given inflow would cause. Good knowledge of hydraulic and hydrological conditions is necessary in order to estimate the effect of such flow-reducing measures. In order to quantify such effect a 1-dimensional hydraulic flow model has been set up for the r

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14

Sahiner, Halit. "Hydraulic Characteristics Of Tyrolean Weirs Having Steel Racks And Circular-perforated Entry." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614247/index.pdf.

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Tyrolean type water-intake structures are commonly used on mountain rivers to supply water to hydropower stations. The amount of water to be diverted from the main channel is the major concern in these kind of structures and should not be less than the design discharge. In this study a physical model of a Tyrolean type water-intake structure was built at the laboratory and the diverted flow from the main channel through the intake structure having steel racks and perforated plates of different types were measured. The experiments were conducted in two stages. In the first stage the tests were

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15

Hamade, Firas Nadim. "Sediment removal from urban runoff using seep berms and vegetative filtration." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50271.

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Previous field demonstration projects in metro-Atlanta have shown that seep berms, which are elongated sedimentation basins at the outlet of a disturbed land area, can provide high suspended sediment trap efficiencies with respect to coarse sediments on construction sites having drainage areas greater than five acres. Previous literature has shown that vegetative filter strips are efficient traps for fine suspended sediment in stormwater runoff. A combination of a seep berm and vegetative filter in series was studied in this thesis as an erosion control measure with quantification of its flow

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16

Hong, Sothea. "Optimisation des tours d’eau sur un réseau de canaux d’irrigation." Thesis, Montpellier, SupAgro, 2014. http://www.theses.fr/2014NSAM0022/document.

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La plupart des réseaux d'irrigation gravitaire traditionnels, encore majoritaires dans le monde, distribuent l'eau aux parcelles agricoles à travers un réseau de canaux à surface libre. La distribution de l'eau sur ce type de réseau suit en général le mode de distribution au tour d'eau (tour d'eau fixe, modulé, arrangé ou mixte) et nécessite de définir un planning de manœuvre des vannes et un calendrier d'arrosage. La performance de la distribution d'eau est généralement très faible, du fait de contraintes de l'infrastructure, de main d'œuvre et d'évolutions des demandes en eau.La thèse propos

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17

Hammar, Lars. "Frazil ice evolution on open channels." Licentiate thesis, Luleå tekniska universitet, 1994. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26532.

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18

Pham, Van Thang. "Contributions à la commande prédictive des systèmes de lois de conservation." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENT051/document.

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La Commande prédictive ou Commande Optimale à Horizon Glissant (COHG) devient de plus en plus populaire dans de nombreuses applications pratiques en raison de ses avantages importants tels que la stabilisation et la prise en compte des contraintes. Elle a été bien étudiée pour des systèmes en dimension finie même dans le cas non linéaire. Cependant, son extension aux systèmes en dimension infinie n'a pas retenu beaucoup d'attention de la part des chercheurs. Ce travail de thèse apporte des contributions à l'application de cette approche aux systèmes de lois de conservation. Nous présentons tou

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19

Hasan, Belkiz, and Paulo Monsalve. "Study on free-surface aeration with high-velocity air-water flows in open-channels." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-216145.

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20

Mouzouri, Miloud. "Non-Newtonian Flow Modelling Through A Venturi Flume." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0091.

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Lors d’une opération de forage, un certain nombre d’événements imprévus par rapport à l’écoulement du fluide de forage dans le puits, peuvent se produire assez rapidement. Des exemples de tels événements sont les afflux de pétrole ("kick") ainsi que les pertes de boue dans la formation. Un "kick" qui augmente en intensité peut entraîner, par ce que l’on nomme, un "blowout" (par exemple l’incident Deepwater Horizon en 2010). Les pertes et les gains sont habituellement détectés en contrôlant l’équilibre de la boue de forage dans le puits, en particulier en contrôlant le débit sortant du puits et

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21

Burdick, Timothy E. "Seasonal effects of elevated carbon dioxide, competition, and water stress on gas exchange and growth of loblolly pine and sweetgum grown in open-top chambers." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-11182008-063327/.

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22

Sepúlveda, Toepfer Carlos. "Instrumentation, model identification and control of an experimental irrigation canal." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/5951.

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This thesis aims to develop control algorithms for irrigation canals in an experimental framework.<br/>These water transport systems are difficult to manage and present low efficiencies in practice. <br/>As a result, an important percentage of water is lost, maintenance costs increase and water users follow a rigid irrigation schedule.<br/>All these problems can be reduced by automating the operation of irrigation canals.<br/>In order to fulfil the objectives, a laboratory canal, called Canal PAC-UPC, was equipped and instrumented in parallel with the development of this thesis. In general, th

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23

Rakotondrandisa, Aina. "Modélisation et simulation numérique de matériaux à changement de phase." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR051/document.

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Nous développons dans ce travail de thèse un outil de simulation numérique pour les matériaux à changement de phase (MCP), en tenant compte du phénomène de convection naturelle dans la phase liquide, pour des configurations en deux et trois dimensions. Les équations de Navier-Stokes incompressible avec le modèle de Boussinesq pour la prise en compte des forces de flottabilité liées aux effets thermiques, couplées avec une formulation de l’équation d’énergie suivant la méthode d’enthalpie, sont résolues par une méthode d’éléments finis adaptatifs. Une approche mono-domaine, consistant à résoudr

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24

Sial, Subhalaxmi. "Velocity Profiles in Smooth and Rough Open Channel Flows." Thesis, 2016. http://ethesis.nitrkl.ac.in/9181/1/2016_MT_SSial.pdf.

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Analysis of different flows is influenced by the different flow parameters. An experimental investigation concerning the longitudinal velocity distribution and depth averaged velocity distribution in an open channel flow has been conducted. Four sets of roughness have been chosen to investigate the effect of roughness on the prediction of the vertical velocity profile in an open channel flow. Vertical velocity profile depends on upon the geometric surface and hydraulic conditions. From the critical review of various researchers, the dip phenomenon depends on the small aspect ratio. Dip phenome

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25

Boyd, Matthew S. "Heat source : stream, river and open channel temperature prediction." Thesis, 1996. http://hdl.handle.net/1957/27036.

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Reach defined analysis concentrated on the water temperature change that occurred in a stream/river segment over the course of one full diurnal cycle. Digital thermistors, data loggers and computer model development were utilized in reach analysis to link parameters of the stream system to a specific temperature change. The methodology employed was relatively simple and fast, and many successive stream segments were analyzed simultaneously. Reach analysis of stream temperature change identified the existing components of the stream system that caused increased water temperature and predicted t

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26

Huang, Jyh-Jen, and 黃智楨. "A Study of Water Quality Model for Open Channel Flow." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/67680242780261451552.

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碩士<br>淡江大學<br>水資源及環境工程學系<br>89<br>The objective of this study is to develop a linearized analytical solution of non-inertia wave and concentration routing problem. The numerical method is to use an explicit finite difference scheme for solving nonlinear dynamic wave and concentration routing problem. Compare the analytical solution with the numerical solution, two methods can obtain good approximations each other. Both methods are applied to a regular channel or a natural channel. Because the linearized analytical solution can obtain good approximation efficiently and eco

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27

Sahu, Mrutyunjaya. "Prediction of flow and its resistance in compound open channel." Thesis, 2011. http://ethesis.nitrkl.ac.in/4427/1/Prediction_of_flow_and_its_resistance_in_compound_open_channels.pdf.

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Flooding situation in rivers is a complex phenomenon and affects the livelihood and economic condition of the region. This complex condition has long been identified and intensive research work has been carried out to find out its remedial solution. During flood, river overtops its banks and spreads to flood plains, called compound channel. It has been observed that the flow velocity in flood plain subsection is slower than the velocity of its course. Due to this difference in velocities between main channel and flood plain, a large shear layer produces.This large shear layer retains complex

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28

Kumar, Arun. "Velocity Coefficient in a Open Channel Flow with Gradual Transition." Thesis, 2017. http://ethesis.nitrkl.ac.in/8776/1/2017_MT_A_Kumar.pdf.

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In this present research work, a detailed study conducted on the transition channel and the variation of specific energy in open channel flow. An empirical model equation formulated for the kinetic energy correction coefficients and moment correction coefficients between the different dependent and independent flow parameters, this model equation applicable only for the gradual expansion simple channel under the subcritical flow. The data set of expansion channel collected from previous researchers and on the basis of data sets the calculated value of the kinetic energy and momentum correction

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29

Das, B. S. "Unsteady flow regulation in open channel by using inverse explicit method." Thesis, 2014. http://ethesis.nitrkl.ac.in/5764/1/E-101.pdf.

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Flood routing and operation-type problems are two major problems which are required to be solved frequently in unsteady flow problems in open channels. Now-a-days for routing and regulating problem, generally the Saint-Venant equation is used to predict the discharge and water stage at the study area in the channel. Routing of flood calculates the discharge and flow depth at future time series. On the other hand the operation problem is mainly used to compute the inflow at required upstream section for regulating structure of the delivery system to get a predefined water demand at required sec

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30

Phanindra, Kalagara. "Study of Hydraulic Characteristics in an Open Channel Flow with Vegetation." Thesis, 2015. http://ethesis.nitrkl.ac.in/7148/1/Study_Phanindra_2015.pdf.

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Experiments have been conducted in an open channel with rigid vegetation for unsubmerged and submerged flows. Cylindrical rods are used to represent the rigid vegetation. The results show that as flow depth changes the roughness constant also changes. The variation of vertical velocity profiles, depth averaged velocity with the flow depth has also been discussed. The flow resistance though the channel is best expressed with depth averaged velocity. Vertical profiles of point velocity for a vegetative channel from position to position are different as compared to that of a simple channel. The v

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31

Samal, R. N. Srusti Darshan. "Boundary Shear Stress Distribution in Smooth and Rough Open Channel Flow." Thesis, 2016. http://ethesis.nitrkl.ac.in/8360/1/2016_MT_214CE4455_NSDSamal.pdf.

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Boundary shear distribution in open channel flow is a crucial issue for river engineer and researchers working in this area.An experimental investigation has been carried out to measure the boundary shear stress distribution along the wetted perimeter of the smooth and rough channel using piston tube technique the accuracy of the method has been compared and checked with another convention method,NDM, VDM,MPM,Velocity Profile Method and energy gradient approach.The boundary shear along the bed and wall of the channel are different for different flow depth and for different roughness conditions

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32

Guo, Yakun. "Flow in Open Channel with Complex Solid Boundary." 2015. http://hdl.handle.net/10454/7520.

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yes<br>A two-dimensional steady potential flow theory is applied to calculate the flow in an open channel with complex solid boundaries. The boundary integral equations for the problem under investigation are first derived in an auxiliary plane by taking the Cauchy integral principal values. To overcome the difficulties of a nonlinear curvilinear solid boundary character and free water surface not being known a priori, the boundary integral equations are transformed to the physical plane by substituting the integral variables. As such, the proposed approach has the following advantages: (1) th

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33

Sahana, Pritam. "Study on Boundary Shear Stress Distribution in Meandering Trapizoidal Open Channel Flow." Thesis, 2009. http://ethesis.nitrkl.ac.in/240/1/study_on_boundary_shear_stress_distribution_in_meandering_trapezoidal_open_channel_flow.pdf.

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The determination of boundary shear stress distribution in meandering trapezoidal open channel flows is crucial in many critical engineering problems such as channel design, calculation of energy losses and sedimentation and in the study of shear stress distribution. In this study, velocity distribution is experimentally investigated in a smooth rectangular open channel. Wall shear stresses are calculated using measured local velocities. Assuming logarithmic velocity distribution along perpendiculars to a wetted perimeter, wall shear stresses were calculated. With the purpose of obtaining shea

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34

Panda, Parameswar. "Prediction of Flow in Compound Open Channel Flows Using Artificial Neural Network." Thesis, 2010. http://ethesis.nitrkl.ac.in/1919/1/project_thesis.pdf.

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Accurate prediction of discharge in compound open channel is extremely essential for river engineering point of view. As this provide essential information regarding flood mitigation, construction of hydraulic structures and for prediction of sediment load. Most natural Rivers and streams consist of two stage channel i.e. main channel and flood plains. Earlier discharge determination model are studied to develop the models. Methods like COHM,SCM, DCM, and other models which is widely used. Here an effort has been made to predict the total discharge in compound channel with the comparison of ab

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35

Sahoo, Nirjharini. "Effect of Differential Roughness on Flow Characteristics in a Compound Open Channel." Thesis, 2012. http://ethesis.nitrkl.ac.in/4469/1/609CE604_NIRJHARINI_THESIS_FINAL.pdf.

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The present thesis is an outcome of a rigorous research effort undertaken by the author with a principal objective to observe the effect of differential roughness between the floodplains and the main channel on the flow characteristics of a compound channel having larger width ratio. Generally the natural channels comprise a wider and rougher floodplain than the main channel (i.e. non-uniform boundary). In this case, much of the hydraulic resistance may be attributed to surface roughness and flow characteristics accounting for other forces. The resistance to flow along the channel boundary is

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36

Khuntia, Jnana Ranjan. "Effect of Secondary Current on Flow Prediction in an Open Channel Flow." Thesis, 2016. http://ethesis.nitrkl.ac.in/8137/1/2016-MT-214CE4382-Current_on_Flow_Prediction.pdf.

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The present thesis is an outcome of physical and numerical research of secondary current effects in open channel flows with both smooth and rough configuration in prismatic cross-sections. Experiments have been conducted for open channel flows of rectangular and trapezoidal cross-section with four different roughnesses to develop models and also to find calibrating coefficients. Using micro-ADV we have been collected 3-D data sets and evaluated Reynolds stress and calibrating coefficients (i.e. secondary flow parameter Γ, eddy viscosity coefficient, friction factors f ). These coefficients pla

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37

Yang, Lengchien, and 楊棱潔. "Characteristics of Shear Stress for The Water Mixing Particles in Open Channel." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/48736304415124596713.

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碩士<br>華梵大學<br>環境與防災設計學系碩士班<br>100<br>Shear stress of the water mixing particles in a smooth channel bed and rough channel bed was analyzed through experimental and theoretical study in this paper. The statistical property, shch as the mean value and the coefficient of variation, for the shear stress of the water mixing particles at various particle concentrations was analyzed. The relationship of the friction coefficient (the dimensionless of the shear stress) and Reynolds number with particle concentration was also developed. Study result shows that the probability density function (PDF) of s

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38

Miri, K. "Prediction of flow in non prismatic compound open channel using artificial neural network." Thesis, 2014. http://ethesis.nitrkl.ac.in/6123/1/E-76.pdf.

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Each river in the world is unique. Some are gently curved, others are meander, and some others are relatively straight and skewed. The size of river geometry also changes from section to section longitudinally due to different hydraulic and surface conditions called non-prismatic channel. Much of the research work are found to be done on prismatic compound channels. There has also been a progress of work found for meandering channels. But an era which has been neglected is that of the work for non-prismatic compound channels. An effort has been made to scrutinize the research work related to n

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39

Singh, Devi Prasad. "Prediction of Flow in Non-prismatic Compound Open Channel using Artificial Neural Network." Thesis, 2016. http://ethesis.nitrkl.ac.in/8512/1/2016_MT_711CE4012_DEVI_PRASAD_SINGH.pdf.

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Every stream on the planet is one of a kind. Some are tenderly bended, others are wind, and some others are generally straight and skewed. The extent of stream geometry additionally changes from segment to area longitudinally because of various pressure driven and surface conditions called non-prismatic channel. A significant part of the examination work are observed to be done on prismatic compound channels. There has additionally been an advancement of work found for winding channels. However, a time which has been dismissed is that of the work for non-prismatic compound channels. An exertio

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40

Balaji, Chikkam Ramakrishna, and Bichitrananda Behera. "Growth of boundary layer thickness and length of fully developed flow in open channel." Thesis, 2014. http://ethesis.nitrkl.ac.in/6493/1/E-27.pdf.

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The aim of the present work was to study the growth of boundary layer thickness and length of fully developed flow in an open channel flow which has a great applications in fields like, hydrodynamics (ships, torpedoes, submarines), wind engineering (buildings, water towers, bridges), aerodynamics (airplanes, rockets, projectiles), ocean engineering (buoys, breakwaters, cables) and transportation (trucks, automobiles, cycles). Boundary layer thickness and length of fully developed flow is crucial for solving many engineering problems such as management of rivers and floodplains, it is important

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41

Sahu, Mrutyunjaya. "Study on Boundary Shear Stress Distribution in Meandering Trapizoidal Open Channel Flow." Thesis, 2009. http://ethesis.nitrkl.ac.in/1107/1/TRAPIZOIDAL_OPEN_CHANNEL_FLOW.docx.

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The determination of boundary shear stress distribution in meandering trapezoidal open channel flows is crucial in many critical engineering problems such as channel design, calculation of energy losses and sedimentation and in the study of shear stress distribution. In this study, velocity distribution is experimentally investigated in a smooth rectangular open channel. Wall shear stresses are calculated using measured local velocities. Assuming logarithmic velocity distribution along perpendiculars to a wetted perimeter, wall shear stresses were calculated. With the purpose of obtaining shea

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42

Nayak, Pinaki Prasanna. "Meandering Effect for Evaluation of Roughness Coefficients and Boundary Shear Distribution in Open Channel flow." Thesis, 2010. http://ethesis.nitrkl.ac.in/2762/1/Final_Thesis_Pinaki_607CE003.pdf.

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Almost all the natural channels meander. During uniform flow in an open channel the resistance is dependent on a number of flow and geometrical parameters. The usual practice in one dimensional flow analysis is to select an appropriate value of roughness coefficient for evaluating the carrying capacity of natural channel. This value of roughness is taken as uniform for the entire surface and for all depths of flow. The resistance coefficients for meandering channels are found to vary with flow depth, aspect ratio, slope and sinuosity and are all linked to the stage-discharge relationships. Alt

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Hsieh, Wei-Chen, and 謝瑋珍. "A Study of Water Quality Model for Open Channel Flow with Circular Cross Section." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/23017267224683879279.

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碩士<br>淡江大學<br>水資源及環境工程學系碩士班<br>93<br>The objective of this study is to develop a linearized analytical model and solve the diffusion problems of pollutants. The water quality model includes unsteady discharge equations and continuity equation of concentration. Because the De Saint Venant equations which contain the continuity and momentum equations, and the continuity equation of contraction are nonlinear partial differential equations, it is difficult to obtain the exact solution. In this study, a linearized analytical technique is provided, not only apply to the scheme of the nonlinear di

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Chang, Kuo-Wei, and 張國威. "A Study on the Water Quality Model for Open Channel Flow with Circular Cross Section." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/61836986697189597430.

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碩士<br>淡江大學<br>水資源及環境工程學系<br>87<br>In the study, an analytical solution is proposed for simulating unsteady open channel flow with circular cross section, and the linearized of the Saint-Venant equation by small perturbation is used to obtain analytical solution . The proposed analytical method is tested for circular channel. It can also be applied to different flow conditions, such as the downstream boundary condition is approximately by a normal flow. The sensitivity analysis of reference central angle, using the reference discharge to solve the concentration routing pr

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XIE, HONG-EHE, and 謝弘哲. "An application of Cubic Spline collocation method for open channel flow and water quality simulation." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/60181326848554329413.

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Hsu, Chih-Tsung, and 許至璁. "Development and Application of 2-D Finite Analytic Model of Water and Sediment Movements in Open Channel." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/06033907224892412808.

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博士<br>國立交通大學<br>土木工程系<br>90<br>For irregular natural channels, there exist longitudinal and lateral variations in flow field and channel bed evolution. A depth-averaged horizontal 2-D model has the capability of simulating the long-distanced longitudinal variations of flow characteristics, as well as the lateral variations of channel cross sections. The purpose of the study is to develop a depth-averaged horizontal 2-D hydraulic and sediment transport model. The main special features of the model include: (1) Considering the irregular cross-sectional geometry of natural channel, a non-orthogon

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WU, KAI-LIN, and 吳凱琳. "The Study of the Variation on Mean Water Level of Open Channel Flow Over A Stepped Rough Bottom." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/q2uecb.

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碩士<br>東南科技大學<br>營建與空間設計系營建科技與防災碩士班<br>107<br>In this paper, we use five different slopes and different kind of variables, as changing the shape, size and group spacing of the energy dissipation ladder model. After the ladder model is placed in the water channel of the open channel flow device, the relative position and height are marked on the side of the waterway to observe the water flow through the energy dissipation, and also analyzing the change of the water level after the ladder module changes with the height of the water level after the energy of the water flow is destroyed. 　　After th

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Horoshenkov, Kirill V., Andrew Nichols, Simon J. Tait, and G. A. Maximov. "The pattern of surface waves in a shallow free surface flow." 2013. http://hdl.handle.net/10454/9579.

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Yes<br>This work presents new water surface elevation data including evidence of the spatial correlation of water surface waves generated in shallow water flows over a gravel bed without appreciable bed forms. Careful laboratory experiments have shown that these water surface waves are not well-known gravity or capillary waves but are caused by a different physical phenomenon. In the flow conditions studied, the shear present in shallow flows generates flow structures, which rise and impact on the water-air interface. It is shown that the spatial correlation function observed for these water s

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Garza, John David. "Probabilistic analysis in surface water hydrology: Open drainage channels and detention basins." Thesis, 1996. http://hdl.handle.net/1911/14050.

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A reliability-based method for analyzing open drainage channels and detention basins using the full marginal distributions of uncertain parameters together with correlation coefficients will be presented in this work. A first and second order component reliability analysis will be performed using the computer program CALREL. Reliability results can be used both in performance and safety assessment of existing structures and in designing structures for a target reliability level. For the case of an open drainage channel, the computed reliability index will be compared with the usual safety fact

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Kao, Hong-Ming, and 高宏名. "Numerical Investigation of Shallow-Water Dam Break Flows in Open Channels and Dambreak-Induced Flood Using Smoothed Particle Hydrodynamics." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/28970178662152617066.

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博士<br>國立臺灣大學<br>生物環境系統工程學研究所<br>99<br>A meshless numerical model is proposed to investigate shallow-water dam break flows in 1D open channels and 2D dambreak-induced flood and inundation. The numerical model is to solve the shallow water equations (SWE) based on smoothed particle hydrodynamics (SPH). The Lagrangian concepts of slice water particles (SWP) and cylindrical water particles (CWP) are adopted in the 1D SPH-SWE and 2D SPH-SWE formulations to generate horizontal flows and water surface variations in rivers and floodplains. The numerical sensitivity analysis is first performed to study

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