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Articles 1 - 19 of 19
Full-Text Articles in Hydraulic Engineering
Wake Characteristics Of Wall-Mounted Finite Solid And Foam-Covered Cylinders, Subhadip Das
Wake Characteristics Of Wall-Mounted Finite Solid And Foam-Covered Cylinders, Subhadip Das
Electronic Theses and Dissertations
The wake characteristics of a wall-mounted finite foam-covered cylinder are explored by comparing the flow properties with the wake of a solid cylinder. The velocity data are acquired experimentally using planar particle image velocimetry (PIV) and numerically by large eddy simulation at Reynolds number of 35100 based on the flow depth and 13100 based on the cylinder diameter. The wake characteristics may vary significantly if the approach flow properties change and also depend on the relative height of the boundary layer thickness with respect to the cylinder height. Therefore, it is a necessity to achieve a fully developed approach flow …
Develop A Multi-Functional Green Pervious Concrete (Mgpc) Pavement With Polycyclic Aromatic Hydrocarbons (Pahs) Removal Function., Hong Shang
Electronic Theses and Dissertations
Stormwater runoff induced Polycyclic Aromatic Hydrocarbons (PAHs) contaminant increasingly imperils the groundwater quality and the sustainable development of human society due to the potential carcinogenic risks. Pavement can be considered as the first line of defense for contaminant removal of the stormwater runoff. New construction materials with stormwater runoff quantity and quality control are in urgent demand for updating the existing pavement system. An innovative material called Multi-functional Green Pervious Concrete (MGPC) was developed in the department of Civil and Environmental Engineering at University of Louisville. This material uses organoclay as the amendment to enhance the PAHs removal capacity of …
Simulation Of Compound Flood Events In Low-Gradient Coastal Watershed, Felix Luis Santiago-Collazo
Simulation Of Compound Flood Events In Low-Gradient Coastal Watershed, Felix Luis Santiago-Collazo
LSU Doctoral Dissertations
Low-gradient coastal watersheds are susceptible to flooding caused by various flows such as rainfall, tides, and storm surge. Compound flooding occurs when at least two of these mechanisms happen simultaneously or in close succession. Different inundation models, observed data, and/or a combination of these are coupled through varying techniques involving one-way, loosely, tightly, or fully coupled approaches to assess compound flooding. This study presents a one-dimensional (1-D), fully coupled compound inundation model based on the Shallow Water equations. This model approach simultaneously simulates the free water surface variations in the ocean domain (i.e., tide and storm surge modeling), rainfall-runoff in …
Modeling The Groundwater Basin In The Northern Cities Management Area, Allyson Swain
Modeling The Groundwater Basin In The Northern Cities Management Area, Allyson Swain
Master's Theses
A model was developed to simulate the groundwater of 8,300 acres of the Northern Cities Management Area (NCMA), which encompasses the northern portion of the Arroyo Grande Watershed and a small subset of the Santa Maria Valley Groundwater Basin. This watershed and groundwater basin is located on the coast and contains Oceano and the Cities of Arroyo Grande, Grover Beach, Pismo Beach. Groundwater in the NCMA is used heavily for agricultural irrigation in the southern portion and municipal applications in the northern portion. Up to 18 of these municipal wells and over 50 irrigation wells are drawing groundwater at any …
Low Impact Development Mitigation For Base Flood Elevation Disparity Between Adjacent Properties, Shaelynn Moore
Low Impact Development Mitigation For Base Flood Elevation Disparity Between Adjacent Properties, Shaelynn Moore
University of New Orleans Theses and Dissertations
Disputes between adjacent property owners in which new development at higher elevation requirements has caused adverse effects in stormwater drainage towards lower, older developments has recently grown in concern. The difference of elevations between properties causes a faster sheet flow effect that bypasses existing drainage paths in the servitude. The goal of this research is to design a low impact development methodology that encourages detention and redirection back toward the shared drainage boundary. Detention is encouraged through subsurface infiltration, storage and re-direction of the flow path. Infiltration trench simulations using EPA’s SWMM software were used to mirror the new LID …
Quantifying Discharge On The Lower Mississippi River Physical Model, Taylor S. Cagle
Quantifying Discharge On The Lower Mississippi River Physical Model, Taylor S. Cagle
LSU Master's Theses
The Lower Mississippi River Physical Model (LMRPM) is a distorted, movable-bed physical model that replicates the hydraulics and bedload (sand) transport of the lower 195 miles of the Mississippi River. One year of flow and sediment transport on the prototype can be modeled in approximately one hour. With the ability to simulate long periods of time on the Lower Mississippi River in such a short time frame, the model can provide unique insight into subjects such as the potential effects from relative sea level rise on the lower river’s hydraulics and sediment transport. Quantifying discharge on the LMRPM is an …
Application Of Machine Learning In Flood Depth Prediction, Armando Esquivel
Application Of Machine Learning In Flood Depth Prediction, Armando Esquivel
Open Access Theses & Dissertations
Machine learning technologies have helped provide answers for problems with a high degree of complexity. Machine learning has been utilized by various disciplines within the Civil Engineering profession and has proven to be efficient in solving complex problems. Although machine learning is being used in the Civil Engineering profession, a formal framework on developing and integrating machine learning has not been developed for flood depth prediction. The proposed word uses machine learning to predict the depth of flood at Houston, TX, due to a 100-year 24-hour storm. The proposed work can be used to collect, store and analyze data to …
Effects Of Historical Land-Use Change On Surface Runoff And Flooding In The Amite River Basin, Louisiana, Usa Using Coupled 1d/2d Hec-Ras–Hec-Hms Hydrological Modeling, Alexandre G. H. Cowles
Effects Of Historical Land-Use Change On Surface Runoff And Flooding In The Amite River Basin, Louisiana, Usa Using Coupled 1d/2d Hec-Ras–Hec-Hms Hydrological Modeling, Alexandre G. H. Cowles
LSU Master's Theses
The Amite River Basin is a largely rural watershed spanning parts of four counties in southern Mississippi and seven parishes in southeast Louisiana, with basinwide imperviousness increasing from 0.82% in 1938 to 3.85% in 2016. The Basin has been the subject of significant research interest since catastrophic flooding in 2016 caused 13 deaths and widespread damages. Rapid development in recent decades has led to an expansion of impervious surfaces in Baton Rouge and surrounding areas, encroaching on floodplains and wetlands. At the basin scale, differences in flooding due to impervious cover changes were found to be somewhat limited, particularly along …
Study Of Fragility Functions For Assessing Damage To Water Pipe Networks Caused By Earthquake Loading, Dylan Joseph Merlo
Study Of Fragility Functions For Assessing Damage To Water Pipe Networks Caused By Earthquake Loading, Dylan Joseph Merlo
Master's Theses
The performance of water lifelines during seismic events is an area of ongoing research. In this study we evaluate eight (8) different seismic events and the impact that ground shaking and ground deformations had on water pipeline systems. The overall goal of this work is to provide municipalities and utility providers with tools for mitigating the consequences of seismic hazards on water lifeline systems by analyzing the accuracy of damage estimation models. Three (3) different repair rate models are evaluated using data collected from the seismic events and compared to observed repair rate data. Results are analyzed to examine the …
Stream Power Analysis Of The Mid-Barataria Conveyance Channel Model, Jack Graham
Stream Power Analysis Of The Mid-Barataria Conveyance Channel Model, Jack Graham
LSU Master's Theses
Louisiana’s coast is disappearing at an alarming rate. Erosion, subsidence, sea level rise, and the devastating impacts from hurricanes have contributed to the loss of thousands of square miles of land that was once a thriving ecosystem. The Louisiana government is taking action to help protect and restore these coastal habitats, which are a home to some two million people and numerous species of animals, birds, and fish. The Mid-Barataria Sediment Diversion is a new type of project to help create land in Barataria Basin. Conceptually, the diversion is designed to use the available sediment and stream power provided by …
Non-Newtonian Model Development For Post-Wildfire Flood Risk Management, Ian Eli Floyd
Non-Newtonian Model Development For Post-Wildfire Flood Risk Management, Ian Eli Floyd
LSU Doctoral Dissertations
Wildfire effected regions of the western U.S. frequently produce non-Newtonian floods (or floods that have a non-linear relationship between stress and deformation) in response to moderate to severe precipitation events. This research presents the development, evaluation, and demonstration of a post-wildfire hydrodynamic one-dimensional and two-dimensional diffusive wave and shallow-water numerical modeling approach that can be used to predict post-wildfire downstream runout of debris flows and floodplain inundation conditions. While researchers have developed a variety of Non-Newtonian approaches to simulate debris flows and mudflows, there has been very limited application to post-wildfire flooding. This can make it difficult to understand the …
Identificación Y Diagnóstico De Puntos Críticos En La Red Primaria De Abastecimiento De Yopal Mediante Modelación Hidráulica En Epanet, Jose Santiago Cainaba Mojica, Santiago Andrés Buitrago Mora
Identificación Y Diagnóstico De Puntos Críticos En La Red Primaria De Abastecimiento De Yopal Mediante Modelación Hidráulica En Epanet, Jose Santiago Cainaba Mojica, Santiago Andrés Buitrago Mora
Ingeniería Civil
Yopal es una ciudad de Colombia y la capital del departamento del Casanare, su sistema de distribución de agua potable es operado por la Empresa de Acueducto y Alcantarillado de Yopal (EAAAY). Recientemente se construyó una planta de potabilización, la cual aún no se encuentra en funcionamiento, con la cual se pretende dar solución a los problemas actuales del acueducto. Existe incertidumbre respecto a la capacidad de la red de distribución actual para garantizar un adecuado servicio, por lo cual en esta tesis se estudió el comportamiento de variables como la presión y el caudal, considerando el crecimiento de la …
Diagnóstico Al Reflujo En El Sistema De Alcantarillado Pluvial Y Sanitario En El Barrio Isla Del Sol, Cesar Divantoque Martinez
Diagnóstico Al Reflujo En El Sistema De Alcantarillado Pluvial Y Sanitario En El Barrio Isla Del Sol, Cesar Divantoque Martinez
Ingeniería Civil
El presente trabajo tiene como finalidad identificar la causa por la cual actualmente se presenta reflujo en el sistema de alcantarillado del barrio Isla del Sol encontrándose este colindante con el río Tunjuelo, para lo anterior se determinó las condiciones actuales del sistema de alcantarillado del barrio Isla del Sol, por ende se empleó la metodología establecida en el reglamento técnico del sector de agua potable y saneamiento básico (Resolución 0330 de 2017), de igual manera se estableció la interacción comprendida entre la descarga del sistema de alcantarillado tanto pluvial como sanitario con los niveles del río Tunjuelo, así mismo …
Local Watershed Analysis For Hubbell And Lake Linden, Michigan, Brittany Hubbard
Local Watershed Analysis For Hubbell And Lake Linden, Michigan, Brittany Hubbard
Dissertations, Master's Theses and Master's Reports
This report analyzes flood frequency risk, examines drainage, and delineates local level watershed characteristics for the Site located in western HUC 12-040201 030304 Torch Lake Subwatershed. Specifically, unnamed catchments in need of HUC-14 or HUC-16 local level delineation are evaluated to determine the effects of excess runoff on the cities of Hubbell and Lake Linden, Michigan. Further, this report aims to identify the location of known or suspected historical and current drainage infrastructure, and to prioritize locations for low-impact sustainable designs that reduce excess runoff and provide flood protection for these lakeshore communities.
Estimating A Range Of Flow Rates Resulting From Extreme Storm Events Within The Wekiva River Watershed Through Statistical Testing And Modeling, Wesley K. Koning
Estimating A Range Of Flow Rates Resulting From Extreme Storm Events Within The Wekiva River Watershed Through Statistical Testing And Modeling, Wesley K. Koning
UNF Graduate Theses and Dissertations
The middle portion of the St. Johns River is located in East-Central Florida, USA. This region of the St. Johns River is increasingly subject to urbanization and conversion of forest areas to agricultural land. Overall, these changes mean that future flood events in the area could adversely impact local citizens. Therefore, the examination of extreme flood events and resiliency to such events is critical. The purpose of this preliminary study is to explore a range of practical applications to estimate extreme flood flows at watercourses within the Middle St. Johns River Basin, focusing specifically upon the Wekiva River sub-basin. The …
The Roles Of Groundwater Table In Catchment Hydrology, Lili Yao
The Roles Of Groundwater Table In Catchment Hydrology, Lili Yao
Electronic Theses and Dissertations, 2020-
The main goal of this dissertation research is to investigate catchment hydrological processes including infiltration and saturation excess runoff generation with consideration of groundwater table. For the infiltration process, an infiltration Péclet number was proposed to quantify the relative effects of gravity and capillary force on the evolution of infiltration capacity in the special case of the presence of a shallow water table, and a power law functional form of Time Compression Approximation was developed whose exponent was found to vary with the Péclet number. For the saturation excess runoff process, a new probability distribution model based on the SCS …
Case Study Of Gravity-Fed Mountain Spring Tap System In Ha Leronti, Lesotho, Africa, Sarah Peterson
Case Study Of Gravity-Fed Mountain Spring Tap System In Ha Leronti, Lesotho, Africa, Sarah Peterson
Dissertations, Master's Theses and Master's Reports
Water security has been declining rapidly in Lesotho, Africa in recent years. Lack of water has led to food insecurity, livestock deaths, and the spread of disease. Rural Basotho depend on rainfall to sustain their livelihoods; however, precipitation variability has recently increased due to climate change. For those who reside in the highlands of Lesotho, mountain springs can be a clean source of water. The tap system in the village of Ha Leronti relies on gravity to distribute water from two mountain springs to the ten village taps and nearby school campus. However, it is incapable of transporting the basic …
Potencial De Mallas Tejidas En Fibras Del Pseudotallo De La Planta De Plátano Musa X Paradisiaca Para La Protección Del Suelo Y El Control De Erosión En Taludes, Alma Linda Villadiego Durango, Brenda Alejandra Sandoval Carrillo
Potencial De Mallas Tejidas En Fibras Del Pseudotallo De La Planta De Plátano Musa X Paradisiaca Para La Protección Del Suelo Y El Control De Erosión En Taludes, Alma Linda Villadiego Durango, Brenda Alejandra Sandoval Carrillo
Ingeniería Civil
El proyecto plantea la elaboración de biomallas temporales hechas a partir de la fibra natural del pseudotallo de la planta de plátano (Musa x paradisiaca), las cuales fueron sometidas a diversas pruebas para comprobar su eficacia en la protección de taludes y reducción de la erosión laminar en los suelos, ya que esta última puede afectar la productividad del suelo, generar deslizamientos, inundaciones, dañar la infraestructura urbana e incluso generar desplazamientos de la población. Para resolver lo anteriormente planteado se llevaron a cabo pruebas en campo durante 2 meses, en un talud natural protegido con la biomalla y otro sin …
Reduction Of Energy Consumption Through Pump Efficiency Analysis, Riley Dodds
Reduction Of Energy Consumption Through Pump Efficiency Analysis, Riley Dodds
Williams Honors College, Honors Research Projects
Water scarcity, global warming, lack of fossil fuels, and future Green Act goals and legislature are at the forefront of policy change and election discussion within the United States. As civil engineers these topics are heavily discussed and challenged within the field and new solutions along with innovations are in constant demand. Within the community of Akron, the Akron Water Supply Water Plant continues to actively innovate and solve numerous concerns ranging from the quality of water to the overall operating costs. Energy consumption cost Akron Water Supply over $952,914.32 and 14,411,960 of kilowatts per hour of electrical energy to …