Browsing Auburn Theses and Dissertations by Author "Fang, Xing"

Now showing items 21-40 of 52

A Geographic Information Systems (GIS) Approach for Estimating Runoff Characteristics for Erosion and Sediment Control Practices in the Southeastern United States

Wan, Run (2015-07-30)

Soil discharged from construction sites to nearby waterbodies have a negative impact on water quality and the aquatic ecosystem. Therefore, it is necessary to develop a stormwater pollution prevention plan (SWPPP) in ...

Gravity Current and Air Pocket Entrapments Caused by Shear-Flow Instabilities in Rapid-Filling Pipes

Eldayih, Yasemin (2018-11-14)

Understanding the behavior of air-water interactions in closed conduits is very important for urban water systems that are subject to rapid filling conditions, such as stormwater systems during intense rain events. Among ...

Hydrodynamic and Water Quality Modeling of Lake and Estuary Systems Considering Inflow and Outflow Effects

Tasnim, Bushra (2023-12-06)

Algal bloom, fish kill, hypoxia, and toxicity are some of the water quality issues faced by many waterbodies, from lakes to estuaries. Internal or external nutrients cause excess growth of algae and then lead to low or no ...

Hydrodynamic and Water Quality Simulations in the Perdido and Wolf Bay System

Li, Xueqian (2019-05-05)

The widespread fish kills of Gulf menhaden (Brevoortia patronus) were reported beginning on 7/31/2015 in the Cotton Bayou, Orange Beach City, Alabama. Although some possible reasons for the fish kill event were provided ...

Identifying Potential Cisco Refuge Lakes in Minnesota under Future Climate Warming Scenarios

Jiang, Liping (2016-12-09)

Fish habitat models were developed and applied to investigate the impacts of future climate change on cisco oxythermal habitat in Minnesota lakes. Cisco Coregonus artedi is the most common cold-water stenothermal fish ...

Improvements in Construction Stormwater Treatment using Flocculants

Kazaz, Billur (2022-05-03)

Construction stormwater runoff constitutes an increased risk for downstream water bodies if unmanaged sediment-laden discharge exits a construction site. Federal and state regulations emphasize the significance of erosion ...

Improvements in Stormwater Detention Technologies through Large-Scale Testing Techniques

Schussler, Jaime (2022-05-05)

Due to urbanization and a changing climate, stormwater management has become increasingly discussed, regulated, and researched. In many areas of the United States, one effect of climate change has taken form in more intense ...

Improvements in the Design and Application of Erosion and Sediment Control Technologies for the Construction Industry

Perez, Michael (2016-12-07)

Erosion and sediment controls (ESCs) have become essential components of construction related activities. Stormwater pollution prevention regulations are the principal catalysts driving the development of new ESC practices ...

Incorporating El Niño Southern Oscillation (ENSO)-Induced Climate Variability for Long-Range Hydrologic Forecasting and Stream Water Quality Protection

Sharma, Suresh (2012-08-02)

El Niño Southern Oscillation (ENSO) has been found to have a strong predictable effect on streamflow in different parts of the world. Since ENSO has potential relationship to seasonal and inter-annual variability in ...

Investigation on the Kinematics of Entrapped Air Pockets in Stormwater Storage Tunnels

Chosie, Carmen (2013-11-01)

Various mechanisms can lead to the entrapment of air pockets within stormwater storage tunnels when they undergo rapid filling during intense rain events (Vasconcelos, 2006). These entrapped air pockets are linked to ...

Measuring and modeling the impact of roadway runoff on a headwater tributary of the Cahaba River

Butler, Catherine (2015-07-24)

Stormwater runoff from highways has been a relevant focus of study both in terms of its characterization during construction phases as well as during the operational years. Highways have been thought to have adverse impacts ...

Modeling of the Wolf Bay and Perdido Bay Watersheds using HSPF

Lusk, Kyle (2017-07-27)

This study is the first stage of the larger project for determining the transport mechanism of endocrine disruptors that flow through the Perdido Bay Basin. Given within are the methods and processes used to perform watershed ...

Modeling Soil Moisture Dynamics in Wetlands

He, Junhao (2021-07-19)

Soil moisture distribution and fluxes are among the fundamental components of the hydrological cycle. One-dimensional Richard’s Equation (hereafter RE) is often used to represent the physics of water moisture distribution ...

A Numerical Investigation on High-Reynolds-Number Gravity Currents in Pressurized and Free-Surface Systems using Shallow Water Equation and Integral Model Approaches

Hatcher, Thomas, Jr. (2014-12-09)

Multiphase flows in the form of gravity currents are prevalent in various natural systems, as well as in some open channels and closed conduits. Thus, accurate flow simulation and efficient modeling tools are important in ...

Numerical modeling of rapidly varying flow conditions in collection systems

Pachaly, Robson (2021-11-29)

The design, operation and maintenance of urban water infrastructure depends on the urban runoff flow characteristics. Many modeling tools are being applied for predicting the flow characteristics and their accuracy are ...

Optimization of Sediment Basin Configurations

Armstrong, Megan (2023-08-14)

Highway construction projects typically involve the disturbance of existing on-site vegetation, leaving bare soil vulnerable to erosion from environmental factors such as rainfall and wind. Soil erosion caused by precipitation ...

Performance Evaluation of Erosion and Sediment Control Practices

Clampitt, Jannell E. (2023-08-01)

Construction-generated stormwater runoff has the potential to negatively affect receiving water bodies downstream. Not only does eroded soil transport other pollutants, but sediment also remains suspended in water, where ...

Performance Evaluation of Sediment Control Practices

Roche, Brian (2023-12-11)

Sediment is a major pollutant of waterways, increasing turbidity, carrying other harmful pollutants, and reducing flow capacity, which can lead to loss of aquatic life and increased risk of flooding. Construction projects, ...

Performance Evaluations on Ditch Check Practices and Products for Channelized Stormwater Runoff Control using Large-Scale Testing

Donald, Wesley (2013-12-19)

The primary purpose and focus of this research is to evaluate and improve erosion and sediment control practices deployed in channelized flow conditions on construction sites in an effort to better understand these practices ...

Qualifying the Saturated Hydraulic Conductivity and Corresponding Infiltration Processes

Alakayleh, Zuhier (2019-12-05)

Many engineering systems such as the hydraulic barriers and infiltration practices are designed based on the understanding of water infiltration through the subsurface. Among the soil hydraulic properties, the saturated ...