UID:
almatuudk_9922950170502884
Format:
1 online resource (IX, 146 pages) :
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figures, diagrams
ISBN:
9780367496913
,
9789463952316
,
0367496917
,
9463952314
,
9781003046981
,
1003046983
,
9781000069242
,
1000069249
,
9781000069259
,
1000069257
,
9781000069266
,
1000069265
Content:
Sediment deposition threatens the performance of many irrigation systems. Because of the high impact on irrigation performance and crop production, many studies have been done on how to deal with sediment deposition. In this research, the Delft3D model, originally developed for hydro-morphologic modeling of rivers and estuaries, was adapted for the use in irrigation systems simulations and applied to different case studies. This research addresses two shortcomings of previous studies of sediments in irrigation systems. Firstly, while previous studies primarily used 1D models, this research uses a 2D/3D model. The use of 2D/3D models in irrigation systems is significant because the non-uniform flow around structures such as offtakes, weirs and gates, leads to asymmetric sedimentation patterns that are missed by 1D simulations. Secondly, whereas previous studies mostly considered non-cohesive sediments, this research simulates cohesive, non-cohesive and a mix of both sediment types. This is important for irrigation systems that draw water from natural rivers that carry a mix of cohesive and non-cohesive sediments. The findings of this research are important for irrigation system maintenance and gate operation. It is also essential for the development of canal operating plans that meet crop water requirements and at the same time minimizes sediment deposition by alternating gates.
Note:
CRC Press/Balkema is an imprint of the Taylor & Francis Group, an informa business.
,
Ph. D. Wageningen University 2020
,
Ph. D. IHE Delft Institute for Water Education 2020
Additional Edition:
Print version: The use of Delft3D to simulate the deposition of cohesive and non-cohesive sediments in irrigation systems
Language:
English
Keywords:
Electronic books.
;
Electronic books.
;
Academic Dissertation
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PhD thesis
;
Electronic books.
;
Academic theses.
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Academic theses.
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Thèses et écrits académiques.
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