Now showing items 241-260 of 3826
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Effect of Clearwater Scour on the Flow Field at a Single Bendway Weir: Two-Dimensional Numerical Modeling Supported by Flume Data
(ASCE, 12/1/2021)This study used two-dimensional (2D or depth-average) numerical modeling to examine the effects of clearwater scour on the flow field at a single bendway weir (BW) set at angles of 30°, 60°, and 90° pointing into the ... -
Discharge Coefficient and Head Loss under Sluice Gates with Small Opening
(ASCE, 12/1/2021)The water flow under a high-dam gate with a small opening has rarely been studied. The discharge coefficient and head loss under sluice gates are studied experimentally, with the relative gate opening less than 0.10, ... -
Assessment of the Performance of a Modified USBR Type II Stilling Basin by a Validated CFD Model
(ASCE, 11/1/2021)The adaptation of existing dams is of paramount importance to face the challenge posed by climate change and new legal frameworks. Thus, it is crucial to optimize the design of stilling basins to reduce the hydraulic jump ... -
Modeling Soil Moisture and Flow Dynamics of Variably Saturated Heterogeneous Lateritic Porous Media under Wheat Crop
(ASCE, 11/1/2021)Soil moisture plays a significant role in hydrologic systems and agriculture by serving as an important input parameter in major hydrologic process modeling. As limited field studies on investigating soil moisture dynamics ... -
Effect of Outlet Configurations on the Removal of Fine Noncohesive Sediment by Vortex Settling Basin at Small River Abstraction Works
(ASCE, 11/1/2021)The effect of varying vortex settling basin (VSB) outlet configurations on the removal of sediment particles >75 μm was computationally investigated using ANSYS Fluent’s Euler-Lagrange approach, which incorporated ... -
Probabilistic Assessment for the Capacity of Grate- and Curb-Opening Inlets during Floods
(ASCE, 11/1/2021)Grate and curb-opening inlets are part of pavement drainage structure function to discharge excess stormwater runoff on the street. One of the main challenges of these inlets is to effectively discharge the runoff, part ... -
Temporal Soil Dynamics in Bioinfiltration Systems
(ASCE, 11/1/2021)Bioinfiltration systems for stormwater management rely on the ability of the engineered media to adequately infiltrate, filtrate, and store water to reduce runoff volumes and improve water quality. However, the potential ... -
Influence of Cohesion on Scour at Piers Founded in Clay–Sand–Gravel Mixtures
(ASCE, 10/1/2021)An accurate prediction of scour depth around bridge piers is crucial for economical and safe design of bridge pier foundations. The main objective of the present study is to identify the influencing cohesive parameters and ... -
Determination of Water Requirement and Crop Coefficient for Sugarcane Using Lysimeter Experiment under Semiarid Climatic Conditions of Ethiopia
(ASCE, 11/1/2021)Sugarcane is one of the most important industrial crops grown throughout tropical areas. Sugarcane production is greatly expanding in developing countries like Ethiopia due to increasing demand for sugar. However, sugarcane ... -
Prediction of Maximum Scour Depth near Spur Dikes in Uniform Bed Sediment Using Stacked Generalization Ensemble Tree-Based Frameworks
(ASCE, 11/1/2021)The scouring process near spur dikes could jeopardize the stability of riverbanks. Thus, accurate estimation of the maximum scour depth near spur dikes is crucial in river engineering. However, due to the complexity of the ... -
Modified NRCS Abstraction Method for Flood Hydrograph Generation
(ASCE, 10/1/2021)The Natural Resources Conservation Service (NRCS) abstraction method is based on two main assumptions. The first is that the ratio of actual water retention to maximum potential retention is equal to the ratio of actual ... -
SILTspread: Performance-Based Approach for the Design and Installation of Silt Fence Sediment Barriers
(ASCE, 10/1/2021)Construction operations are susceptible to high rates of rainfall-induced soil erosion due to the earth-disturbing nature of land-grading activities. Silt fence sediment barriers are a temporary sediment control practice ... -
Approximate Method for Evaluating the Drainage Process of an Urban Pipe Network with Unavailable Data
(ASCE, 10/1/2021)Because drainage network data is unavailable in many urban areas, the accuracy of urban flood simulation may be reduced. A linear reservoir method is proposed to characterize the drainage capacity of a pipe network, and a ... -
Flow Regimes of a Surcharged Plunging Dropshaft-Tunnel System
(ASCE, 10/1/2021)In drainage and sewerage systems, vertical dropshafts are commonly used to convey water flow from high to low elevations. When the underground tunnel is surcharged, the lower part of the shaft is submerged. The impact of ... -
Evapotranspiration and Water Stress Coefficient for Deficit-Irrigated Maize
(ASCE, 10/1/2021)Crop evapotranspiration under deficit soil water conditions must be quantified to accurately manage deficit irrigation and crop water stress and achieve targeted water savings. A stress coefficient is commonly used to ... -
Migration of Maximum Scour Location around Wide Setback Bridge Abutments in Floodplains
(ASCE, 9/1/2021)Location of maximum scour depth is a key feature for the accurate design of scour countermeasures. Experimental results show that the maximum scour depth around wide setback abutments migrates to a location further downstream ... -
Velocity Distributions around Blocked Trash Racks
(ASCE, 9/1/2021)Transported debris in open channels can lead to accumulations and, therefore, cause blockages at trash racks. Velocity distributions and flow patterns change because of these blockages and may lead to geomorphic condition ... -
Hydrological Assessment of Experimental Behaviors for Different Drainage Methods in Sports Fields
(ASCE, 9/1/2021)Sports fields are highly functional places for economic and social purposes nowadays. Effects of various climate conditions on sports fields are very crucial in terms of playability, the health of the players, and the ... -
Simulation of Airborne Transport with a Simplified Drift-Flux Model
(ASCE, 8/1/2021)The use of treated wastewater for irrigation is associated with the dispersion of fine droplets containing possibly pathogens. Their inhalation could expose workers and people in the surroundings to health problems. Wind ... -
On the Impact of Bed-Bathymetry Resolution and Bank Vegetation on the Flood Flow Field of the American River, California: Insights Gained Using Data-Driven Large-Eddy Simulation
(ASCE, 9/1/2021)High-fidelity models can simulate many detailed hydrodynamic features of flow in natural rivers. However, it is challenging to explicitly capture the effects of highly complex bathymetry and bank line vegetation on the ...