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Effects of Temperature Changes on Emitter Discharge
Publisher: American Society of Civil Engineers
Abstract: Working on the assumption that temperature affects water viscosity and emitter geometry, the writers have developed a dimensional analysis approach to the potential pressure-discharge relationship to estimate discharge ...
Optimal Water Allocation in Shortage Situations as Applied to an Irrigation Community
Publisher: American Society of Civil Engineers
Abstract: This work studies the most beneficial way of allocating water in an irrigation community in water shortage situations. Therefore, it proposes that the irrigation surface area be divided into homogeneous zones, each with a ...
Matrix Methodology to Study the Probability of Pressure Deficit in On-Demand Branched Irrigation Networks
Publisher: American Society of Civil Engineers
Abstract: This paper presents a matrix algebraic expression based on the probability of pressure deficit. A set of expressions to calculate the average and the variance of the aggregated head losses in any pathway of the irrigation ...
Estimation of Cavitation Limits From Local Head Loss Coefficient
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavitation effects in valves and other sudden transitions in water distribution systems are studied as their better understanding and quantification is needed for design and analysis purposes and ...
Determining Minor Head Losses in Drip Irrigation Laterals. I: Methodology
Publisher: American Society of Civil Engineers
Abstract: Minor head losses at emitter insertions along drip laterals were predicted by a derivation of Bélanger’s theorem and analyzed by the classic formula that includes a friction coefficient
Analytical Expressions for Hydraulic Calculation of Trapezoidal Drip Irrigation Units
Publisher: American Society of Civil Engineers
Abstract: Analytical expressions have been developed relating water distribution indexes in trapezoidal drip irrigation units to design variables which define these units: lengths and diameters of pipes, emitter and lateral spacing, ...
Closure to “Analytical Relationships for Designing Rectangular Drip Irrigation Units” by Luis Juana, Alberto Losada, Leonor Rodríguez-Sinobas, and Raúl Sanchez
Publisher: American Society of Civil Engineers
Closure to “Determining Minor Head Losses in Drip Irrigation Laterals. II: Experimental Study and Validation” by Luis Juana, Leonor Rodrı´guez-Sinobas, and Alberto Losada
Publisher: American Society of Civil Engineers
Water Distribution in Laterals and Units of Subsurface Drip Irrigation. I: Simulation
Publisher: American Society of Civil Engineers
Abstract: A complete methodology to predict water distribution in laterals and units of subsurface drip irrigation (SDI) is proposed. Two computer programs have been developed for the hydraulic characterization of SDI; one for ...
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