Search Results - "Strelkoff, T. S"

Modern analysis of surface irrigation systems with WinSRFR by Bautista, E., Clemmens, A.J., Strelkoff, T.S., Schlegel, J.

“…WinSRFR is a new generation of software for analyzing surface irrigation systems. Founded on an unsteady flow hydraulic model, the software integrates event…”
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Analysis of surface irrigation systems with WinSRFR—Example application by Bautista, E., Clemmens, A.J., Strelkoff, T.S., Niblack, M.

“…WinSRFR is an integrated software package for analyzing surface irrigation systems. Software functionalities and technical features are described in a…”
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Calibration of Submerged Radial Gates by Clemmens, A. J, Strelkoff, T. S, Replogle, J. A

“…Calibration equations for free-flowing radial gates typically provide sufficient accuracy for irrigation district operations. However, many water purveyors…”
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Irrigation Performance Measures: Efficiency and Uniformity by Burt, C. M, Clemmens, A. J, Strelkoff, T. S, Solomon, K. H, Bliesner, R. D, Hardy, L. A, Howell, T. A, Eisenhauer, D. E

“…It is essential to standardize the definitions and approaches to quantifying various irrigation performance measures. The ASCE Task Committee on Defining…”
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Sediment and Phosphorus Transport in Irrigation Furrows by Bjorneberg, D.L, Westermann, D.T, Aase, J.K, Clemmens, A.J, Strelkoff, T.S

“…Sediment and phosphorus (P) in agricultural runoff can impair water quality in streams, lakes, and rivers. We studied the factors affecting P transfer and…”
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New Results for an Approximate Method for Calculating Two-Dimensional Furrow Infiltration by Bautista, E, Warrick, A. W, Strelkoff, T. S

“…AbstractThis study expands the analysis of a proposed furrow infiltration formulation based on an approximate solution to the two-dimensional Richards…”
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Transport Capacity for Eroded Silts in Irrigation Furrows by Strelkoff, T. S, Clemmens, A. J

“…An aspect of surface-irrigation performance is the erosion and transport of soil from which furrows are formed. The current single representative-particle-size…”
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Field Verification of Two-Dimensional Surface Irrigation Model by Clemmens, A. J, Strelkoff, T. S, Playán, E

“…A two-dimensional (2D) model of unsteady shallow-water flow in surface irrigation was developed to evaluate the influence of field-grading precision on surface…”
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General Characteristics of Solutions to the Open-Channel Flow, Feedforward Control Problem by Bautista, E, Strelkoff, T. S, Clemmens, A. J

“…A dimensionless formulation of the open-channel flow equations was used to study the feedforward control problem for single-pool canals. Feedforward inflow…”
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Approximating Wetted Perimeter in Power-Law Cross Section by Strelkoff, T. S, Clemmens, A. J

“…The wetted perimeter is an open-channel parameter that influences surface drag and also influences infiltration in furrows and unlined canals. Various…”
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Improved Surface Volume Estimates for Surface Irrigation Volume-Balance Calculations by Bautista, E, Strelkoff, T. S, Clemmens, A. J

“…Abstract This article reviews procedures for estimating surface storage in surface irrigation volume balance calculations. Those procedures are based on the…”
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Errors in Infiltration Calculations in Volume-Balance Models by Bautista, E, Strelkoff, T. S, Clemmens, A. J

“…Abstract Volume-balance models of surface irrigation calculate the infiltrated volume at a given time as a product of the stream length, upstream infiltration,…”
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External Iterative Coupling Strategy for Surface-Subsurface Flow Calculations in Surface Irrigation by Bautista, E, Zerihun, D, Clemmens, A. J, Strelkoff, T. S

“…Coupling the unsteady open-channel flow equations of surface irrigation with the equation of variably saturated porous media flow is a computationally complex…”
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Structured Application of the Two-Point Method for the Estimation of Infiltration Parameters in Surface Irrigation by Bautista, E, Clemmens, A. J, Strelkoff, T. S

“…The two-point method is one of the best known procedures for estimating empirical infiltration parameters from surface irrigation evaluation data and mass…”
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Optimal and Postirrigation Volume Balance Infiltration Parameter Estimates for Basin Irrigation by Bautista, E, Clemmens, A. J, Strelkoff, T. S

“…Engineering analysis of surface irrigation systems is predicated on reasonably accurate estimates of a field’s infiltration properties. Optimal estimation…”
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Soil and Crop Hydraulic Properties in Surface Irrigation by Bautista, E, Strelkoff, T. S

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Influence of Canal Geometry and Dynamics on Controllability by Strelkoff, T. S, Deltour, J. L, Burt, C. M, Clemmens, A. J, Baume, J. P

“…This paper presents the results of the Task Committee on Canal Automation Algorithms with regard to the influence of canal properties on the controllability of…”
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Numerical Methods Used to Model Unsteady Canal Flow by Strelkoff, T. S, Falvey, H. T

“…This paper presents a critical review of numerical methods used to model unsteady flow in canals. The significance of the various forms of the governing…”
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Nondimensional Expression of Unsteady Canal Flow by Strelkoff, Theodor S, Clemmens, Albert J

“…By appropriate choice of reference variables, dimensionless governing equations and initial and boundary conditions of unsteady canal flow have fewer…”
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Overland Water Flow and Solute Transport: Model Development and Field-Data Analysis by Abbasi, Fariborz, Simunek, Jirka, van Genuchten, M. Th, Feyen, Jan, Adamsen, Floyd J, Hunsaker, Douglas J, Strelkoff, Theodore S, Shouse, Peter

“…The application of plant nutrients with irrigation water is an efficient and cost-effective method for fertilizer application to enhance crop production and…”
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