Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 901-920 of 3826
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Fuzzy State Real-Time Reservoir Operation Model for Irrigation with Gridded Rainfall Forecasts
(American Society of Civil Engineers, 2016)A short-term real-time operation model with fuzzy state variables is developed for irrigation of multiple crops based on earlier work on long-term steady-state policy. The features of the model that distinguish it from the ... -
Investigation of a Sill Effect on Rectangular Side-Weir Flow by Using CFD
(American Society of Civil Engineers, 2016)Side weirs are water intake or discharge structures that discharge water from, e.g., a dam, an open channel to external environment for using flow control, or irrigation system. In this paper, to examine how the sill placed ... -
Analysis of Geometrical Relationships and Friction Losses in Small-Diameter Lay-Flat Polyethylene Pipes
(American Society of Civil Engineers, 2016)The use of lay-flat polyethylene pipes to irrigate horticultural crops has been receiving widespread attention in the last decade, due to the significant improvements in their hydraulic performance, their potentially high ... -
Impact of Upflow Gravel Filtration on the Clogging Potential in Microirrigation
(American Society of Civil Engineers, 2016)This paper evaluates the effect of six water treatment combinations for the treatment of turbid surface water on four types of emitters by looking at clogging potential and distribution uniformity. The pilot plants use ... -
Development of a Sample Multiattribute and Multireservoir System for Testing Operational Models
(American Society of Civil Engineers, 2016)Reservoir systems are built to deliver multiple functions, such as water supply, energy production, flood control, recreation, and fisheries protection in a safe, economic, and efficient manner. This paper presents a sample ... -
Gray Models for Real-Time Groundwater-Level Forecasting in Irrigated Paddy-Field Districts
(American Society of Civil Engineers, 2016)This study presents two gray models with which to forecast groundwater levels at two study sites; one is located on an island area, and one is in an inland area. These models used the moving average of daily infiltration ... -
Numerical Modeling of Submerged Hydraulic Jump from a Sluice Gate
(American Society of Civil Engineers, 2016)The velocity field and surface profile of an open channel flow with a submerged hydraulic jump from a vertical sluice gate are investigated for two different flow cases. The governing equations are numerically solved using ... -
Optimal Positioning and Sizing of Detention Tanks within Urban Drainage Networks
(American Society of Civil Engineers, 2016)The present work describes a procedure for the evaluation of the optimal number, position, configuration, and sizes of detention tanks in urban drainage networks, to decrease the maximum flow depths and velocities for an ... -
Application of Unsupervised Clustering Techniques for Management Zone Delineation: Case Study of Variable Rate Irrigation in Southern Alberta, Canada
(American Society of Civil Engineers, 2016)Sustainable water management is paramount to effective and efficient irrigation water management. Over decades, excessive irrigation water application has caused erosion, poor crop quality, water logging, salinity, and ... -
Discussion of “Reduction of Flow Separation and Energy Head Losses in Expansions Using a Hump” by A. Najafi-Nejad-Nasser and S. S. Li
(American Society of Civil Engineers, 2016) -
Closure to “Reduction of Flow Separation and Energy Head Losses in Expansions Using a Hump” by A. Najafi-Nejad-Nasser and S. S. Li
(American Society of Civil Engineers, 2016) -
Discussion of “Staged Labyrinth Weir Hydraulics” by M. R. Dabling, B. P. Tullis, and B. M. Crookston
(American Society of Civil Engineers, 2015) -
Effect of Inflow Froude Number on Flow Pattern in Channel-Expansive Transitions
(American Society of Civil Engineers, 2016)Channel expansions are common in both natural and artificial open channels. With increasing cross-sectional dimensions in an expansion, flow decelerates. Because of the complexity of flow patterns, physical models alone ... -
Discussion of “Hydraulic Characteristics of Flow over Sinusoidal Sharp-Crested Weirs” by Zahra Oreizi, Manouchehr Heidarpour, and Sara Bagheri
(American Society of Civil Engineers, 2016) -
Closure to “Application of the Water Cycle Algorithm to the Optimal Operation of Reservoir Systems” by Omid Bozorg Haddad, Mojtaba Moravej, and Hugo A. Loáiciga
(American Society of Civil Engineers, 2015) -
Discussion of “Application of the Water Cycle Algorithm to the Optimal Operation of Reservoir Systems” by Omid Bozorg Haddad, Mojtaba Moravej, and Hugo A. Loáiciga
(American Society of Civil Engineers, 2015) -
Estimating Actual Transpiration of Apple Trees Based on Infrared Thermometry
(American Society of Civil Engineers, 2015)A method was developed based on the radiative properties and energy budget of a single apple leaf to calculate the actual transpiration ( -
Corn Yield Simulation under Different Nitrogen Loading and Climate Change Scenarios
(American Society of Civil Engineers, 2015)Climate change in recent years has been affecting agriculture and especially crop production worldwide. This study analyzes the effect of two different climate change scenarios on crop production of an experimental site ... -
Response of Orange Trees to Deficit Irrigation Strategies: Effects on Plant Nutrition, Yield, and Fruit Quality
(American Society of Civil Engineers, 2015)Environmental and economic sustainability of agricultural systems has to face the general decreasing trend of water resources through the adoption of strategies aimed at improving water-use efficiency. In the study, during ...