An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow

Sedimentation occurs at the entrance of reservoir in the form of delta, and coarse particles create delta. In this research, the effect of non-uniformity of sediment particles on the progression and shape of delta in steady and unsteady flow is studied. Results show that in experiments with non-unif...

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Main Authors: Mahdi Sadighkia, SeyedAli Ayoubzadeh, Jaafar Mamizadeh
Format: Article
Language:fas
Published: Shahid Chamran University of Ahvaz 2012-10-01
Series:علوم و مهندسی آبیاری
Subjects:
Online Access:http://jise.scu.ac.ir/article_10792_3327562aa6367ad6e7f3159ef2bd7d52.pdf
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author Mahdi Sadighkia
SeyedAli Ayoubzadeh
Jaafar Mamizadeh
author_facet Mahdi Sadighkia
SeyedAli Ayoubzadeh
Jaafar Mamizadeh
author_sort Mahdi Sadighkia
collection DOAJ
description Sedimentation occurs at the entrance of reservoir in the form of delta, and coarse particles create delta. In this research, the effect of non-uniformity of sediment particles on the progression and shape of delta in steady and unsteady flow is studied. Results show that in experiments with non-uniform particles, the progression of delta is more 2dimentional than in experiments with uniform sediment particles. Symmetry in final pattern of delta doesn’t depend on non-uniformity of sediment particles, and in all experiments a good symmetry can be observed. In experiments with non-uniform particles in steady flow, the power of Swenson equation for the toe is calculated 0.788 that shows slower progression for delta because this power in experiments with uniform particles is calculated 0.85. This is also correct in unsteady flow. After flood, the foreset slope of delta is decreased in experiments with non-uniform particles.
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spelling doaj.art-2f469285f4374614af49d624af2113472022-12-21T18:22:14ZfasShahid Chamran University of Ahvazعلوم و مهندسی آبیاری2588-59522588-59602012-10-0135310712010792An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady FlowMahdi Sadighkia0SeyedAli Ayoubzadeh1Jaafar Mamizadeh2دانشجوی دکتری تخصصی سازه های آبی،دانشگاه تربیت مدرسدانشیار گروه سازه های آبی، دانشگاه تربیت مدرساستادیار گروه آبیاری، دانشگاه ایلامSedimentation occurs at the entrance of reservoir in the form of delta, and coarse particles create delta. In this research, the effect of non-uniformity of sediment particles on the progression and shape of delta in steady and unsteady flow is studied. Results show that in experiments with non-uniform particles, the progression of delta is more 2dimentional than in experiments with uniform sediment particles. Symmetry in final pattern of delta doesn’t depend on non-uniformity of sediment particles, and in all experiments a good symmetry can be observed. In experiments with non-uniform particles in steady flow, the power of Swenson equation for the toe is calculated 0.788 that shows slower progression for delta because this power in experiments with uniform particles is calculated 0.85. This is also correct in unsteady flow. After flood, the foreset slope of delta is decreased in experiments with non-uniform particles.http://jise.scu.ac.ir/article_10792_3327562aa6367ad6e7f3159ef2bd7d52.pdfnon-uniform particlesprogression and pattern of deltasteady and unsteady flow
spellingShingle Mahdi Sadighkia
SeyedAli Ayoubzadeh
Jaafar Mamizadeh
An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow
علوم و مهندسی آبیاری
non-uniform particles
progression and pattern of delta
steady and unsteady flow
title An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow
title_full An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow
title_fullStr An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow
title_full_unstemmed An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow
title_short An Experimental Study in the Effects of Non-uniform Particles of Sediment on the Progression and Pattern of Delta in Steady and Unsteady Flow
title_sort experimental study in the effects of non uniform particles of sediment on the progression and pattern of delta in steady and unsteady flow
topic non-uniform particles
progression and pattern of delta
steady and unsteady flow
url http://jise.scu.ac.ir/article_10792_3327562aa6367ad6e7f3159ef2bd7d52.pdf
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