Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 2681-2700 of 3826
-
Daily Evapotranspiration Prediction from Louisiana Flooded Rice Field
(American Society of Civil Engineers, 2000)During 1995, daily evapotranspiration ( -
Solution for a Stream Depletion Problem
(American Society of Civil Engineers, 2000)River recharge is one of the important factors affecting the yield of nearby wells. The mathematical complexities of the existing methods in computation of rate and volume of stream depletion can be very much simplified ... -
Influence Zone of Recharging-Dewatering Actions in Unconfined Aquifer
(American Society of Civil Engineers, 2000)This work deals with the recharging-dewatering problem for an unconfined aquifer. In particular, the evolution of the aquifer free surface consequent to changes in the water level in a trench near the aquifer itself has ... -
Closure to “Estimation of Surface Volume in Hydrological Models for Border Irrigation” by Joaquín Monserrat and Javier Barragán
(American Society of Civil Engineers, 2000) -
Discussion of “Estimation of Surface Volume in Hydrological Models for Border Irrigation” by Joaquín Monserrat and Javier Barragán
(American Society of Civil Engineers, 2000) -
Correction Factors for Center Pivots with End Guns
(American Society of Civil Engineers, 2000)The end-gun discharge of center pivots is expressed as a ratio of the inflow at the pivot. Using this ratio, equations are developed for the friction correction factor and pressure distribution factor. If end-gun discharge ... -
Simple Flume for Flow Measurement in Open Channel
(American Society of Civil Engineers, 2000)There are various types of water measurement devices available. The type of flume used in a particular application depends on site-specific factors or limitations and the need for precision and cost. In measuring water in ... -
Theoretical Justification of SCS Method for Runoff Estimation
(American Society of Civil Engineers, 2000) -
Discussion of “Theoretical End-Depth-Discharge Relationship for Free Overfall” by Vito Ferro
(American Society of Civil Engineers, 2000) -
Supercritical Flow in Bend Manhole
(American Society of Civil Engineers, 2000)Supercritical flow in a bend manhole for combined sewer systems is considered for a typical relative curvature and deflection angles of 45° and 90°. The typical features of bend flow in a U-shaped channel are determined, ... -
Simple Approximation for Flowing Well Problem
(American Society of Civil Engineers, 2000)The discharge and yield of a flowing well can be computed by existing complex solutions or by Duhamel's technique using kernel coefficients. The mathematical complexities of these methods can be very much simplified through ... -
Optimal Channel Cross Section with Composite Roughness
(American Society of Civil Engineers, 2000)For channels with composite roughness, an equivalent uniform roughness coefficient and flow geometric elements are used in an optimal design method using the Manning equation. The optimal design problems are formulated in ... -
Infiltration of Water into Soil with Cracks
(American Society of Civil Engineers, 2000)This paper presents the physical basis of the FRACTURE submodel for simulating infiltration of precipitation/irrigation water into relatively dry, cracked, fine-textured soils. The FRACTURE submodel forms part of the ... -
Inlet Pressure for Horizontal Tapered Laterals
(American Society of Civil Engineers, 2000)Analytical equations are presented for two average pressure correction factors developed for linear displacement laterals with or without outflow at the downstream end. The average correction factor for laterals without ... -
Transient Ditch Drainage of Two-Layered Soil
(American Society of Civil Engineers, 2000)The analytical solution to the problem of transient drainage without replenishment for a two-layered soil, by applying Girinsky's potential, has been presented. The effect of various parameters on drainage has been evaluated, ... -
Adjusted Factor <b><i>G</i></b><b><sub><i>a</i></sub></b> for Pipelines with Multiple Outlets and Outflow
(American Society of Civil Engineers, 1999)The adjusted factor -
Ancient Machu Picchu Drainage Engineering
(American Society of Civil Engineers, 1999)The drainage infrastructure constructed by the Inca at ancient Machu Picchu represents a significant public works achievement. The difficult site constraints associated with the nearly 2,000 mm per year of rainfall, steep ... -
Design of Minimum Seepage Loss Canal Sections
(American Society of Civil Engineers, 2000)The minimum area section is a thoroughly investigated problem in the hydraulics literature. However, because of the complexities of the analysis, the design of a minimum seepage loss section has not been attempted as yet. ... -
Stability and Mobility of Sand-Bed Channels Affected by Seepage
(American Society of Civil Engineers, 1999)Seepage effects on the stability, mobility, and incipient motion of sand-bed particles are experimentally investigated. Seepage through a sand bed in a downward direction (suction) reduces the stability of particles, and ... -
Solute Transport Modeling in Overland Flow Applied to Fertigation
(American Society of Civil Engineers, 2000)A model of solute transport in overland flow is developed and applied to the simulation of surface fertigation. Water flow is simulated using the depth-averaged, 1D shallow water equations. Solute flow is represented by ...