Assessment of the Cohesive Sediments Fall Velocity in Karkheh Dam Reservoir

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Shadorvan m.; LASHKAR ARA B.; SEYED KABOLI H.

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Paper Information

Journal: Journal of Irrigation Sciences and Engineering Year:2018 | Volume:41 | Issue:2 Page(s): 211-224

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Information Journal Paper

Title

Assessment of the Cohesive Sediments Fall Velocity in Karkheh Dam Reservoir

Author(s)

Shadorvan m. | LASHKAR ARA B. | SEYED KABOLI H. | Issue Writer Certificate

Keywords

Settling ColumnQ1

Flocculation ReactionQ1

Fall VelocityQ2

Cohesive sedimentQ2

Abstract

In reservoir of dams, especially near the dam body, the cohesive fine sediments are deposited mainly. The mechanical behavior of these sediments is largely controlled by the interparticle attraction caused by electrostatic and physiochemical forces. these properties cause the stickiness and accumulation of clay particles and formation of dense masses called flocs, which is sometimes referred to as flocculation. flocculation is influenced by several factors including salinity, flow regime, sediment concentration and organic matter. Flocculation is the most important factor that makes the settling, Fall Velocity and transfer of Cohesive sediment considerably more complex and dynamic than non-Cohesive sediments. In order to determine the relations governing Cohesive sediments, the physical characteristics and behavior of these sediments should be identified. The terminal settling velocity of sedimentary particles in liquids, called particle Fall Velocity, is one of the most important properties in determining the physical properties of sediments caused transfer, deposition and consolidation. The Fall Velocity of Cohesive sediments is influenced by many factors, including salinity, initial particle size, turbulence, temperature of water, and suspended sediment concentration...

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APA: Copy

Shadorvan, m., LASHKAR ARA, B., & SEYED KABOLI, H.. (2018). Assessment of the Cohesive Sediments Fall Velocity in Karkheh Dam Reservoir. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 41(2 ), 211-224. SID. https://sid.ir/paper/217211/en

Vancouver: Copy

Shadorvan m., LASHKAR ARA B., SEYED KABOLI H.. Assessment of the Cohesive Sediments Fall Velocity in Karkheh Dam Reservoir. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2018;41(2 ):211-224. Available from: https://sid.ir/paper/217211/en

IEEE: Copy

m. Shadorvan, B. LASHKAR ARA, and H. SEYED KABOLI, “Assessment of the Cohesive Sediments Fall Velocity in Karkheh Dam Reservoir,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 41, no. 2 , pp. 211–224, 2018, [Online]. Available: https://sid.ir/paper/217211/en

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