Download or read book Nonlinear Hydrodynamic Model of Furrow Irrigation written by Francisco Souza and published by . This book was released on 1981 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mathematical model of the entire furrow-irrigation process has been developed. This model can be used to analyze and predict the performance of free-draining sloping furrow irrigation systems; capability for preduction of low with cutback was also provided. The model is based on the solution of the complete continuity and momentum conservation equations, which govern the unsteady, gradually varied flow of water in open channels. Therefore, it is a complete hydrodynamic model. In addition, it has been demonstrated that zero-inertia conditions can also be simulated by the present model. A fully implicit finite-difference scheme was used to find approximate solutions for the integrated form of the non-linear governing equations, which are simultaneously solvedby the double-sweep technique. The input to the model consists of the inflow discharge, furrow slape, cutoff (application) time, lenght, roughness (the Manning n), soil-infiltration characteristics (k and a in the Kostiaskov equation), and furrow shape (C and M in the top width equation, B = Cym, for a power-law cross section0. output information consists of advance and recession times, post-irrigation areal distribution of infiltrated water along the furrow, runoff volume, as well as water application and storage efficiencies. Dimensional analysis was applied to reduce the number of governing parameters in the equations. Model performance was evaluated by comparison with field data. The results of both the hydrodynamic and the zero-inertia approaches ...
Download or read book Numerical Calculation of Infiltration in Furrow Irrigation Simulation Models written by E. Bautista and published by . This book was released on 1991 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of Intake Parameters and Control of Furrow Irrigation Systems Under Spatially Variable Infiltration written by Eduardo Bautista Vera and published by . This book was released on 1992 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of Furrow Infiltration Parameters from Advance Times and Advance Rates written by E. Bautista and published by . This book was released on 1991 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Furrow Irrigation Modeling written by Lawrence John Schwankl and published by . This book was released on 1989 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of IRDC 90 written by University of Lethbridge. Water Resources Institute and published by Lethbridge, Alta. : Water Resources Institute, University of Lethbridge. This book was released on 1991 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Non linear Zero inertia Model for Surge Flow Furrow Irrigation written by Mohammad Vali Rayej Kafshgiri and published by . This book was released on 1984 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinematic Wave Modeling in Water Resources written by Vijay P. Singh and published by John Wiley & Sons. This book was released on 1997-10-28 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinematic wave (KW) modeling methods are gaining wide acceptance as fast and accurate methods for handling a wide range of water modeling problems. This book provides a through reference to the application of KW methods to such problems as the spatial representation of watersheds, overland flow routing, and channel flow routing.
Download or read book Effect of Hydraulics on Furrow Infiltration written by Behzad Izadi and published by . This book was released on 1984 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Irrigation Systems for the 21st Century written by Larry G. James and published by . This book was released on 1987 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of Irrigation Systems for the 21st Century, held in Portland, Oregon, July 28-30, 1987. Sponsored by the Irrigation and Drainage Division of ASCE; Oregon Section of ASCE. This collection contains 105 papers on environmental and water management aspects of irrigation. Topics include: agricultural drainage; quantification of components for crop water budget; water resources data collection; wastewater reuse; groundwater quality; land disposal of food processing wastes; sizing and operation of irrigation projects; water production functions applied to irrigation projects; surge flow irrigation; automation of on-farm irrigation projects; computer applications in irrigation and drainage; evaluation of hydraulic structures under extreme events; operation and safety of dams; weather modification; and institutional and economic aspects of project formation. A special section on selenium is included.
Download or read book Agricultural Engineers Yearbook written by American Society of Agricultural Engineers and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1980 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1995 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Modelling of Hydrodynamics for Water Resources written by Pilar Garcia Navarro and published by CRC Press. This book was released on 2007-11-01 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overland flow modelling has been an active field of research for some years, but developments in numerical methods and computational resources have recently accelerated progress, producing models for different geometries and types of flows, such as simulations of canal and river networks. Flow in canals has traditionally been described using one-dimensional, depth-averaged, shallow water models; but a variety of simulation techniques now facilitate the management of hydrodynamic systems, providing models which incorporate complex geometry and diverse flows. Much effort has gone into elaborating canal operational rules based on decision support systems, with the dual aim of assuring water delivery and meeting flow control constraints. In natural water courses, water management problems are associated with the need to meet quality standards. Numerical modelling of advection-diffusion can be used to manage problems related to the movement of solutes in rivers and aquifers. The analysis of solute transport is used to safeguard the quality of surface and ground water and to help prevent eutrophication. Solute flow through the soil can be dynamically linked to overland flow for hydrological and agricultural applications. Advances in modelling also cast new light on sediment transport in rivers, exploring the complex dynamics of river bed erosion and deposition and assist in thee analysis of river-reservoir systems. All these issues are discussed in Numerical Modelling of Hydrodynamics for Water Resources, which will be useful to civil engineers, applied mathematicians, hydrologists, and physicists.
Download or read book Agricultural Engineers Yearbook of Standards written by and published by . This book was released on 1982 with total page 1722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
