Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 201-220 of 3826
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Redistribution Mechanism for Irrigation Water and Salinity in Typical Irrigation and Drainage Unit in the Hetao Irrigation District, China
(ASCE, 2022/04/30)This study clarified the migration and accumulation patterns of irrigation water and associated salt in a cropland irrigation and drainage unit and evaluated the water-use rationality of the irrigation and drainage unit ... -
Performance Test of Venturi Aerators for Subsurface Drip Irrigation
(ASCE, 2022-01-13)Subsurface drip irrigation systems with water and fertilizer-aerated irrigation technology have helped improve crop yield and quality and are receiving increasing attention in the field of agricultural efficient irrigation. ... -
Geospatial Approach for Integrated Command Area Management
(ASCE, 2022-01-27)Among the goals set by the United Nations 2030 agenda for sustainable development to address the economic component of sustainable development goal (SDG) target 6.4, More Crop Per Drop happens to be the universal motto for ... -
Evaluation of Pulsating Pressure and Emitter Position in Preventing Drip Emitters from Clogging
(ASCE, 2021-12-20)Non–pressure compensating (Non-PC) emitters are employed mainly in drip irrigation systems due to their structural simplicity and low manufacturing costs; however, they present high sensitivity to physical obstruction, ... -
Deep-Learning Segmentation of Clogging Patterns of Cylindrical Drip Emitters with Varied Geometric Features
(ASCE, 2022-02-15)Three sets of drip emitter samples that were used in agricultural farms for 3–5 years were examined using a Computed Tomography (CT) scanner. The 2D slices and 3D images obtained were processed using Dragonfly 2020.1 ... -
Improvement of Discharge Flow Structure by Bluff-Body Insert and Size Reduction of a Mixed-Flow Irrigation Pump
(ASCE, 2021-12-28)This paper concerns efficiency improvement of an 8-in. mixed-flow irrigation pump by modification of discharge flow channel. First, computational fluid dynamics (CFD) modeling was validated with the experimental results ... -
Physical, Analytical, and CFD Models of a Long-Throated Flume
(ASCE, 2022-01-11)U-flumes are a subset of long-throated flumes suitable for use in wastewater metering. Although their mathematical characteristics are well defined so that they can be readily analyzed with existing design tools for ... -
CFD Simulations of Conical Central Baffle Flumes
(ASCE, 2021-12-11)Conical central baffle flumes present an effective solution for temporary flow measurements in open channels. A conical central baffle flume consists of a cone-shaped obstruction, or a central baffle, oriented vertically ... -
Some Insights on Flow over Sharp-Crested Weirs Using Computational Fluid Dynamics: Implications for Enhanced Flow Measurement
(ASCE, 2022-03-16)This study reexamines flow over a sharp-crested weir using computational fluid dynamics (CFD) to identify the optimal operating range under which the weir functions with accuracy as a free-flowing measurement device. A ... -
Discharge Characteristics of a Novel Inclined-Bed Triangular Side Weir in Subcritical Flow
(ASCE, 2021-12-06)As hydraulic control structures, side weirs are generally employed for irrigation, drainage, and many other water regulation purposes. Researchers have studied the use of labyrinth geometry to increase the length of side ... -
Numerical Simulation of Turbulent Jet Scour through Implementation of a Single Phase Eulerian Model
(ASCE, 2021-11-22)Particle transport by fluid is probably one of the most difficult and involved subjects among fluid dynamics, with many important issues in this field still to be fully understood. The main purpose in this work was to ... -
Essential Considerations in Applying the Curve-Number Method
(ASCE, 2021-12-08)The curve-number method is reviewed and assessed using rainfall and runoff measurements at 80 well-instrumented experimental watersheds in the United States. Key results of the study show that the applicable curve number ... -
Study of Effective Parameters on Performance of Vortex Settling Basins Using Taguchi Method
(ASCE, 2021-12-07)In this study, the performance of a vortex settling basin (VSB) with a clockwise circulation was experimentally evaluated. The inlet flow rate was in the range of 8–22 L/s. Based on the Taguchi and response surface methods, ... -
Scour Downstream of a Piano Key Weir with and without a Solid Apron
(ASCE, 2021-11-08)Piano Key Weirs (PKWs) are often preferred over other spillways for the dam rehabilitation due to high discharging capacity. The present study investigates scour downstream of three cycles of PKWs with and without solid ... -
Application of AI Approaches to Estimate Discharge Coefficient of Novel Kind of Sharp-Crested V-Notch Weirs
(ASCE, 2022-01-05)In this study, the hydraulic features of the SCVW (a novel type of sharp-crested V-notch weirs) were scrutinized in the popular vertex angles θ, i.e., 30°, 45°, 60°, 90°, 120°, 128°, and 150°, under aerated, steady ... -
Determination of Discharge Distribution in Meandering Compound Channels Using Machine Learning Techniques
(ASCE, 2021-10-28)Accurate flow rate prediction is essential to analyze flood control, sediment transport, riverbank protection, and so forth. The flow rate distribution becomes even more complicated in compound channels due to the momentum ... -
Performance of WOFOST Model for Simulating Maize Growth, Leaf Area Index, Biomass, Grain Yield, Yield Gap, and Soil Water under Irrigation and Rainfed Conditions
(ASCE, 2021-12-06)The World Food Studies (WOFOST) model’s performance in simulating different field maize (Zea mays L.) growth and productivity variables was evaluated using 6 years of field experimental data that were measured from ... -
Methodology to Evaluate Performance of Sediment Control Log Filter Media
(ASCE, 2021-11-03)Stormwater management is necessary to protect surface waters from pollutants, and significant amounts of time and money are being expended to purchase and install sediment control logs for this purpose. Testing to compare ... -
Additional Friction Factor Optimized for Modeling Transient Flows Following Air-Pocket Entrapment in Stormwater Systems
(ASCE, 2021-11-19)The gravity flow in sewer systems may change to partially pressurized flow for reasons including rapid filling, and maintenance and repair. During this alteration, air can be entrapped and becomes highly pressurized, and ... -
Effects of Straw Mulching, Compost Percentage, and Slope Ratio on Green Vegetation Establishment and Runoff Quality Control
(ASCE, 2021-11-08)Soil erosion prevention and management represents a major environmental challenge faced by many highway construction projects. This study analyzed sustainable improvements to current standard procedures for final grade ...