NUMERICAL MODELLING TO DEFINE DEPOSITION RATE AND DISPERSION COEFFICIENT OF COHESIVE SEDIMENTS

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MEFTAH HALAGHI M.

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Journal: Journal of Water and Soil Conservation Year:2009 | Volume:16 | Issue:3 Page(s): 1-15

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Title

NUMERICAL MODELLING TO DEFINE DEPOSITION RATE AND DISPERSION COEFFICIENT OF COHESIVE SEDIMENTS

Author(s)

MEFTAH HALAGHI M. | Issue Writer Certificate

Keywords

COHESIVE SEDIMENTQ2

DISPERSION COEFFICIENTQ2

MASS TRANSFER EQUATIONQ2

Abstract

A detailed description of the behavior of cohesive fine-grained sediments is a very complicated task. Simulation of COHESIVE SEDIMENT movement has been successfully treated in the past using the macroscopic properties of the watersediment system. In this study, a 1-Dimensional equation of COHESIVE SEDIMENT has been proposed for deposition term and DISPERSION COEFFICIENT of MASS TRANSFER EQUATION. This equation has been solved by Control Volume method and calibrated with laboratory data. The tests have been done in a flume with 0.3m diameter, the slope 0.00008, discharge between 3~5.7 liter per second and the concentration of 4~8gram per liter. The model shows that the DISPERSION COEFFICIENT is a function of Reynolds number and rate of velocity to shear velocity.

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APA: Copy

MEFTAH HALAGHI, M.. (2009). NUMERICAL MODELLING TO DEFINE DEPOSITION RATE AND DISPERSION COEFFICIENT OF COHESIVE SEDIMENTS. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 16(3), 1-15. SID. https://sid.ir/paper/156176/en

Vancouver: Copy

MEFTAH HALAGHI M.. NUMERICAL MODELLING TO DEFINE DEPOSITION RATE AND DISPERSION COEFFICIENT OF COHESIVE SEDIMENTS. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2009;16(3):1-15. Available from: https://sid.ir/paper/156176/en

IEEE: Copy

M. MEFTAH HALAGHI, “NUMERICAL MODELLING TO DEFINE DEPOSITION RATE AND DISPERSION COEFFICIENT OF COHESIVE SEDIMENTS,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 16, no. 3, pp. 1–15, 2009, [Online]. Available: https://sid.ir/paper/156176/en

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