Journal of Irrigation and Drainage Engineering: Recent submissions
Now showing items 1981-2000 of 3826
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Hydraulics of Broad-Crested Weirs with Varying Side Slopes
(American Society of Civil Engineers, 2009)The flow of water over a trapezoidal, broad-crested, or embankment weir with varying upstream and downstream slopes has been investigated. Data are presented comparing the effect of slopes of -
Discussion of “Simple Equations for Aquifer Parameters from Drawdowns in Large-Diameter Wells” by Sushil K. Singh
(American Society of Civil Engineers, 2009) -
Discussion of “Simple Equations for Aquifer Parameters from Drawdowns in Large-Diameter Wells” by Sushil K. Singh
(American Society of Civil Engineers, 2009) -
Discussion of “Estimating Storage Coefficient and Transmissivity from Slug Test Data” by Prabhata K. Swamee and Sushil K. Singh
(American Society of Civil Engineers, 2009) -
Closure to “Estimating Storage Coefficient and Transmissivity from Slug Test Data” by Prabhata K. Swamee and Sushil K. Singh
(American Society of Civil Engineers, 2009) -
Event and Continuous Hydrologic Modeling with HEC-HMS
(American Society of Civil Engineers, 2009)Event hydrologic modeling reveals how a basin responds to an individual rainfall event (e.g., quantity of surface runoff, peak, timing of the peak, detention). In contrast, continuous hydrologic modeling synthesizes ... -
Allocation of Flow to Plots in Pressurized Irrigation Distribution Networks: Analysis of the Clément and Galand Method and a New Proposal
(American Society of Civil Engineers, 2009)This article reviews the method for allocating flow to irrigation plots proposed by Clément and Galand in (1979). Mention is made of its shortcomings, such as the lack of consideration given to the specific technical and ... -
Closure to “Minimum Specific Energy and Critical Flow Conditions in Open Channels” by Hubert Chanson
(American Society of Civil Engineers, 2008) -
Entrance Loss Coefficients and Inlet Control Head–Discharge Relationships for Buried-Invert Culverts
(American Society of Civil Engineers, 2008)In current practice, entrance loss coefficients and inlet control head–discharge relationships for buried-invert culverts designed for fish passage applications are either ignored or approximated using traditional culvert ... -
Closure to “Using Hydrus 2-D Simulation Model to Evaluate Wetted Soil Volume in Subsurface Drip Irrigation Systems” by Giuseppe Provenzano
(American Society of Civil Engineers, 2008) -
Retrofit Storm Water Retention Volume for Low Impact Development
(American Society of Civil Engineers, 2008)The concept of low impact development (LID) applies decentralized on-site runoff source control to storm water management. LID is an integration of bioretention and vegetated landscapes to maintain a catchment’s hydrologic ... -
Method of Solution of Nonuniform Flow with the Presence of Rectangular Side Weir
(American Society of Civil Engineers, 2008)An iterative step method for solving the nonlinear ordinary differential equation, governing spatially varied flows with decreasing discharge, like the flow over side weirs, is developed. In the procedure, starting at a ... -
Numerical Simulation of Flows in Cut-Throat Flumes
(American Society of Civil Engineers, 2008)A numerical simulation is presented to obtain the flow characteristics of cut-throat flumes in rectangular open channels. Cut-throat flumes with a horizontal floor are used as simple devices for flow measurement in open ... -
Comparing Three Models for Treatment of Stagnant Zones in Riverine Transport
(American Society of Civil Engineers, 2008)The modified advection dispersion equation (MADE) model is compared to the transient storage model (TSM) and fractional advection dispersion equation (FRADE) model for modeling riverine transport. The comparisons are ... -
Approximation of Well Function and Identification of Leaky Aquifer Parameters
(American Society of Civil Engineers, 2008)The existing equation for leaky aquifers is transformed into a nondimensional form using new parameters and a scaled well function for leaky aquifers is proposed. A computationally simple function is developed for accurately ... -
Evolutionary Algorithms for the Determination of Critical Depths in Conduits
(American Society of Civil Engineers, 2008)The determination of critical depth and the position of control sections is important in open-channel hydraulics. Calculation of critical depth in open channels is useful not only for determining the condition of a flow ... -
Approximation of M Function for Partially Penetrating Wells
(American Society of Civil Engineers, 2008)A computationally simple approximation of the Hantush -
Reducing Detention Volumes with Improved Outlet Structure
(American Society of Civil Engineers, 2008)To reduce required detention volume, a detention basin outlet structure (DBOS) was tested that can control the maximum allowable outlet discharge rate independent of the upstream driving head. Unlike traditional outlet ... -
Discussion of “Using HYDRUS-2D Simulation Model to Evaluate Wetted Soil Volume in Subsurface Drip Irrigation Systems” by Giuseppe Provenzano
(American Society of Civil Engineers, 2008) -
Aerial Assessment of Ephemeral Gully Erosion from Agricultural Regions in the Pacific Northwest
(American Society of Civil Engineers, 2008)Soil erosion from agricultural areas continues to be problematic in terms of both financial and environmental measures. Ephemeral gullies contribute to the soil loss both by the volume of sediment eroded from the gullies ...