Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 61-80 of 3765
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Center-Pivot Maintenance Trends in the Western United States
(ASCE, 2024/06/01)Following recommendations for replacing center pivots and center-pivot sprinkler packages can help farmers improve water application efficiency and optimize crop production. Little information exists on the frequency with ... -
Anisotropy in Turbulent Flow over Two-Dimensional Fixed Bedforms with Downward Seepage
(ASCE, 2024/02/01)The investigation of bedform configurations and their migration manifest under varying flow conditions in alluvial channels remains a persistent challenge for engineers and researchers due to the intricate nature and lack ... -
Effects of Bed Material and Downstream Flow Depth on the Evolution of Bed in a Right-Angled Open-Channel Confluence
(ASCE, 2024/02/01)Effects of bed material and downstream flow depth on bed evolution in a right-angled channel confluence were studied through laboratory experiments. Velocity field, water surface elevation, and bed profile were measured ... -
A Numerical Method for Cross-Section Changes and Gates Resulting from the Riemann Problem in Irrigation Canal Systems
(ASCE, 2024/02/01)Hydraulic simulation models offer unlimited opportunities for improving the performance of irrigation canal systems by studying the flow behavior in a large and complex canal network under a variety of design and management ... -
Modeling Solute Transport in Sprinkler Irrigation Laterals
(ASCE, 2024/04/01)The application of agricultural chemicals to crops in the form of aqueous solutions or emulsions blended with irrigation water (often referred to as chemigation) is widely practiced in modern farming systems. Optimal ... -
Evaluating Dripper-Plants Spacing for Improving Tomato Yield and Water Productivity under the Drip-Irrigation System in the Sudanian Climate in Burkina Faso
(ASCE, 2024/04/01)In Burkina Faso, surface drip irrigation is promoted as a water-saving technique to overcome the decline of agricultural water through the increase of water productivity. However, there is little proof up to now about the ... -
3D Numerical Study of Scour around a Pile Group in the Staggered Arrangement under Combined Wave-Current Flows
(ASCE, 2024/04/01)The paper presents three-dimensional (3D) simulations conducted to study scour around a pair of twin piles arranged in different skew angle (α) configurations under combined wave-current flow conditions, utilizing a ... -
Sensitivity Analysis of AquaCrop Model for Winter Wheat in Different Water Supply Conditions
(ASCE, 2024/04/01)AquaCrop, a water-driven model, has been developed to simulate the response of crops, including wheat, to the amount of irrigation water. To estimate crop yield using this model, the calibration stage is applied first, ... -
Crop Water Stress Index for Scheduling Irrigation of Wheat Crop
(ASCE, 2024/06/01)The present study aimed to examine the relationship between canopy air temperature difference and vapor pressure deficit (VPD) in wheat crops under normal or nonstressfull conditions. The treatments were undertaken on five ... -
Experimental Study on Local Scour Downstream of Arced Piano-Key Weirs
(ASCE, 2023/12/01)The piano key weir is a unique new geometric type that can have a linear (rectangular or trapezoidal) or arc (trapezoidal) layout. Depending on the flow hydraulics and the bed type, different shapes of scour holes can form ... -
Assessment of 40 Empirical Models for Estimating Reference Evapotranspiration under the Three Major Climate Zones of Iraq
(ASCE, 2023/11/01)Accurate reference evapotranspiration (ETo) estimation is crucial for water irrigation management and sustainable agriculture planning. The difficulty in obtaining several data requirements for employing the recommended ... -
Reliability Analysis of Water Supply Channels for Conveying Design Flow
(ASCE, 2023/12/01)The incorporation of a reliability analysis in the design of hydraulic structures can provide insights into management strategies that may consider potential failure modes, uncertainties, and corresponding risks. This study ... -
Spatial and Temporal Variability of Water Application via a Center Pivot
(ASCE, 2023/12/01)The effect of discrete movement of center-pivot towers on water distribution uniformity is a phenomenon difficult to demonstrate in the field; thus, in this paper, the dependence of uniformity of water application on the ... -
Influence of Downstream Channel Width on Flow Features in a T-Shaped Open-Channel Confluence
(ASCE, 2023/11/01)Open-channel confluences are important junctions in natural and human-made channel networks. Different controls of the confluence hydrodynamics have already been studied intensively, often in schematized geometrical ... -
OptGate: A New Tool to Design and Analyze the Performance of Conventional and Self-Compensating Gated Pipe Systems
(ASCE, 2023/11/01)Surface irrigation is still by far the most common method adopted worldwide. For many developing countries, shifting to modern pressurized irrigation is hampered by system and energy costs. Gated pipes are an improvement ... -
Hydromechanics of the Asymmetric Trapezoidal Piano Key and Labyrinth Weirs
(ASCE, 2023/11/01)This paper presents the results of experimental measurements and numerical simulations on the hydromechanics of trapezoidal asymmetric piano key weirs and compares the performance of piano key weirs and labyrinth weirs ... -
Economic Impact and Decomposition Analysis of Income Change vis-à-vis Drip and Conventional Irrigation Technology in Bananas: A Case Study of the South Gujarat Region in India
(ASCE, 2023/12/01)The alarming water scarcity in Gujarat state justifies the adoption of water-efficient technologies like drip irrigation. Effective transfer and implementation of banana cultivation practices with improved irrigation system ... -
Canal Controllability Identification Based on Automation Theory to Improve Water Delivery Efficiency in Irrigation Canal Systems
(ASCE, 5/17/2023 )Canal controllability is an open and significant topic that addresses the unreliability/uncertainty in water delivery, efficiency, and modernization in the irrigation system. The study developed an analysis tool for canal ... -
An Improved Dimensional Model for Calculating the Wetting Pattern in Soil under Drip Irrigation
(ASCE, 7/3/2023 1)The development of wetting zone in soil under drip irrigation is an important design parameter that is difficult to determine a priori. Using Hydrus-two-dimensional (2D), this paper studied water movement emanating from ... -
Comparison of Erosion Control Products Using an ASTM D6459 Rainfall Simulator: Insights and Suggestions
(ASCE, 5/22/2023 )This study used a large-scale ASTM International D6459 rainfall simulator to evaluate performance of various types of erosion control products used in construction. Rolled erosion control products (RECPs), hydraulic erosion ...