Sediment Transport In Irrigation Canals
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Sediment Transport In Irrigation Canals
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Author : Herman Depeweg
language : en
Publisher: CRC Press
Release Date : 2014-10-06
Sediment Transport In Irrigation Canals written by Herman Depeweg and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-06 with Science categories.
Sediment transport in irrigation canals influences to a great extent the sustainability of an irrigation system. Unwanted erosion or deposition will not only increase maintenance costs, but may also lead to unfair, unreliable and unequitable distribution of irrigation water to the end users. Proper knowledge of the characteristics, including behaviour and transport of sediment will help to design irrigation systems, plan effi cient and reliable water delivery schedules, to have a controlled deposition of sediments, to estimate and arrange maintenance activities, etc. The main aim of these lecture notes is to present a detailed analysis and physical and mathematical descriptions of sediment transport in irrigation canals and to describe the mathematical model SETRIC that predicts the sediment transport, deposition and entrainment rate as function of time and place for various flow conditions and sediment inputs. The model is typically suited for the simulation of sediment transport under the particular conditions of non-wide irrigation canals where the flow and sediment transport are strongly determined by the operation of the flow control structures. The lecture notes will contribute to an improved understanding of the behaviour of sediments in irrigation canals. They will also help to decide on the appropriate design of the system, the water delivery plans, to evaluate design alternatives and to achieve an adequate and reliable water supply to the farmers.
A New Approach To Sediment Transport In The Design And Operation Of Irrigation Canals
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Author : Herman Depeweg
language : en
Publisher: CRC Press
Release Date : 2007-04-05
A New Approach To Sediment Transport In The Design And Operation Of Irrigation Canals written by Herman Depeweg and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-04-05 with Science categories.
The transport of sediment greatly influences the sustainability of an irrigation system. Erosion and deposition not only increase maintenance costs, but may result in an inequitable and inadequate distribution of irrigation water. Understanding the behaviour and transport of sediment allows efficient planning and reliable water delivery schedules,
Sediment Transport In Irrigation Canals
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Author : Shivaji Shende
language : en
Publisher:
Release Date : 2015-03
Sediment Transport In Irrigation Canals written by Shivaji Shende and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03 with Irrigation canals and flumes categories.
An irrigation canal is a waterway, often man-made or enhanced, built for the purpose of carrying water from a source such as a lake, river, or stream, to soil used for farming or landscaping. The engineering concept of efficiency at different levels of a canal system is important for planning, designing and even operating a canal irrigation system.
Sediment Transport In Irrigation Canals
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Author : V. Mendez
language : en
Publisher: CRC Press
Release Date : 1998-01-01
Sediment Transport In Irrigation Canals written by V. Mendez and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-01-01 with Science categories.
This study focuses on sediment transport in irrigation canals which may have a serious impact on design, operation and maintenance activities. Using a mathematical model, and examing ways in which this model can be applied to real-world situations, this text is highly useful for theoreticians and students alike.
Role Of Sediment Transport In Operation And Maintenance Of Supply And Demand Based Irrigation Canals Application To Machai Maira Branch Canals
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Author : Sarfraz Munir
language : en
Publisher: CRC Press
Release Date : 2011-01-27
Role Of Sediment Transport In Operation And Maintenance Of Supply And Demand Based Irrigation Canals Application To Machai Maira Branch Canals written by Sarfraz Munir and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-27 with Technology & Engineering categories.
This work describes the role of sediment transport in the operation and maintenance of demand-based downstream controlled irrigation canals. Sediment deposition in these irrigation canals severely affects the operation of the automatic flow control system. The book also discusses sediment transport modelling in irrigation canals. A simplified 1-D mathematical model SETRIC (SEdiment TRansport in Irrigation Canals) has been improved with the inclusion of downstream control component for the downstream controlled irrigation canals. Based on field measurements and sediment transport modelling, a number of approaches have been proposed for sediment management in such irrigation canals by improvement in their design and operation. This book will be of interest to Irrigation Engineers and Managers, Hydraulic Engineers, Water Resources Engineers and Managers, Civil Engineers, and Agricultural Engineers.
Role Of Sediment Transport In Operation And Maintenance Of Supply And Demand Based Irrigation Canals
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Author : Sarfraz Munir
language : en
Publisher:
Release Date : 2011
Role Of Sediment Transport In Operation And Maintenance Of Supply And Demand Based Irrigation Canals written by Sarfraz Munir and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Irrigation canals and flumes categories.
Sedimentation In Irrigation Water Bodies Reservoirs Canals And Ditches
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Author : Frank F. Reckendorf
language : en
Publisher:
Release Date : 1995
Sedimentation In Irrigation Water Bodies Reservoirs Canals And Ditches written by Frank F. Reckendorf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Irrigation categories.
Role Of Sediment In The Design And Management Of Irrigation Canals
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Author : Krishna P. Paudel
language : en
Publisher: CRC Press
Release Date : 2017-07-03
Role Of Sediment In The Design And Management Of Irrigation Canals written by Krishna P. Paudel and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-03 with categories.
The performance of irrigation schemes that carry sediment laden water is often poor. Modern irrigation schemes are increasingly demand based, which means that the water flow in the canals is determined by the crop water requirements. Accordingly the flow in the canal network is not constant as the crop water requirement changes with the climate and the growing stages. Also the inflow of the sediment is not constant throughout the irrigation season. Such schemes, particularly having unlined canals in alluvial soils, are difficult to design and to manage without compromising the flexibility or maintenance cost. This research has made an in-depth assessment on the role of sediment in the design and management of an irrigation scheme by using the data of Sunsari Morang Irrigation Scheme, Nepal. An analysis of the velocity and shear stress distribution across a non-wide trapezoidal canal has been made to derive the correction factor for the sediment transport predictors. An improved approach based on a rational concept of the design of canals for sediment transport is proposed. By using the sediment transport model SETRIC, a water delivery plan has been designed and tested for changing water and sediment inflow conditions that can be implemented with the existing canal infrastructure. The research also shows that flexibility of operation and efficient sediment management are difficult to achieve at the same time. A compromise has to be made and this needs to be reflected in the design. All methods to transport, exclude or extract the sediment are temporary measures and just transfer the problem from one place to the other. A better understanding of sediment movement helps to identify the problems beforehand and to find the best possible solutions.
Impact Of Improved Operation And Maintenance On Cohesive Sediment Transport In Gezira Scheme Sudan
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Author : ISHRAGA S. OSMAN
language : en
Publisher: CRC Press
Release Date : 2018-09-27
Impact Of Improved Operation And Maintenance On Cohesive Sediment Transport In Gezira Scheme Sudan written by ISHRAGA S. OSMAN and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-27 with categories.
Irrigated agriculture remains to be the main option to boost the economy in Sudan in general. It can rise the living standard of the majority of the population; particularly those who are attached to farming and livestock. With the expected increase in population in the next decades, water management of large irrigation systems will become a key issue to increase productivity and assure future food security. Sediment transport in irrigation canals makes water management very complicated. This study focuses on water management in Gezira Scheme, Sudan. This scheme is irrigated from the Blue Nile River, which is characterized by a high sediment concentration. The aim of the study was to reduce the impact of fine sediment deposition in irrigation canals by improving the operation and maintenance procedures. A numerical model has been developed to simulate the cohesive sediment transport in irrigation canals. This model is a useful tool for the operators and decision makers to assess different options of operation in terms of sediment transport. This study found that sediment deposition in the canals can be minimized if the operation based on crop water requirement is adjusted at a certain period during the flood season.
Role Of Sediment In The Design And Management Of Irrigation Canals
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Author : Krishna Prasad Paudel
language : en
Publisher:
Release Date : 2010
Role Of Sediment In The Design And Management Of Irrigation Canals written by Krishna Prasad Paudel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Irrigation categories.
"The performance of irrigation schemes that carry sediment laden water is often poor. Modern irrigation schemes are increasingly demand based, which means that the water flow in the canals is determined by the crop water requirements. Accordingly the flow in the canal network is not constant as the crop water requirement changes with the climate and the growing stages. Also the inflow of the sediment is not constant throughout the irrigation season. Such schemes, particularly having unlined canals in alluvial soils, are difficult to design and to manage without compromising the flexibility or maintenance cost. This research has made an in-depth assessment on the role of sediment in the design and management of an irrigation scheme by using the data of Sunsari Morang Irrigation Scheme, Nepal. An analysis of the velocity and shear stress distribution across a non-wide trapezoidal canal has been made to derive the correction factor for the sediment transport predictors. An improved approach based on a rational concept of the design of canals for sediment transport is proposed. By using the sediment transport model SETRIC, a water delivery plan has been designed and tested for changing water and sediment inflow conditions that can be implemented with the existing canal infrastructure. The research also shows that flexibility of operation and efficient sediment management are difficult to achieve at the same time. A compromise has to be made and this needs to be reflected in the design. All methods to transport, exclude or extract the sediment are temporary measures and just transfer the problem from one place to the other. A better understanding of sediment movement helps to identify the problems beforehand and to find the best possible solutions."--Back cover.