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Physically Based Coupled Model for Simulating 1D Surface–2D Subsurface Flow and Plant Water Uptake in Irrigation Furrows. I: Model Development
Publisher: American Society of Civil Engineers
Abstract: Physically based modeling of the interacting water flow during a furrow irrigation season can contribute to both a sustainable irrigation management and an improvement of the furrow irrigation efficiency. This paper presents ...
Analytical Model of Surge Flow in Nonprismatic Permeable Channels and Its Application in Arid Regions
Publisher: American Society of Civil Engineers
Abstract: A surge running down a dry wadi bed as a consequence of a controlled water release from a reservoir—e.g., for artificial groundwater recharge—represents a free boundary problem. After some time, when aiming for groundwater ...
Physically Based Modeling of Interacting Surface–Subsurface Flow During Furrow Irrigation Advance
Publisher: American Society of Civil Engineers
Abstract: Surface–subsurface flow during furrow irrigation is analyzed employing both a laboratory experiment and a surface–subsurface flow model. The proposed model overcomes the restrictions of traditional furrow irrigation models ...
Analytical Solution to the Zero-Inertia Problem for Surge Flow Phenomena in Nonprismatic Channels
Publisher: American Society of Civil Engineers
Abstract: Surge flow phenomena, e.g., as a consequence of a dam failure or a flash flood, represent free boundary problems. The extending computational domain together with the discontinuities involved renders their numerical solution ...
Efficient Solution of the Coupled One-Dimensional Surface—Two-Dimensional Subsurface Flow during Furrow Irrigation Advance
Publisher: American Society of Civil Engineers
Abstract: Physically based modeling of the coupled one-dimensional surface and two-dimensional (2D) subsurface flow during furrow irrigation advance often causes numerical instabilities and nonconvergence problems. This is particularly ...
Modeling Two-Dimensional Infiltration from Irrigation Furrows
Publisher: American Society of Civil Engineers
Abstract: Numerical simulation of the two-dimensional (2D) infiltration process during furrow irrigation requires considerable computational effort, which can be reduced by analytical modeling. This paper deals with the further ...
Spatial and Temporal Variation of Manning’s Roughness Coefficient in Furrow Irrigation
Publisher: American Society of Civil Engineers
Abstract: Manning’s roughness coefficient is one of the input parameters in many surface irrigation simulation models. It affects the velocity of flow and thereby its variation with time and distance along the field length influence ...
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