MODELING THE EFFECT OF SPUR DIKES ON BANK EROSION CONTROL USING CCHE2D (CASE STUDY: KARUN RIVER)

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TAJBAKHSH MOHAMMAD; MUSAVI JAHROMI SEYED HABIB

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Journal: IRANIAN WATER RESEARCH JOURNAL Year:2015 | Volume:9 | Issue:2 (17) Page(s): 79-89

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Title

MODELING THE EFFECT OF SPUR DIKES ON BANK EROSION CONTROL USING CCHE2D (CASE STUDY: KARUN RIVER)

Author(s)

TAJBAKHSH MOHAMMAD | MUSAVI JAHROMI SEYED HABIB | Issue Writer Certificate

Keywords

SPUR DIKEQ2

KARUN RIVERQ2

NUMERICAL CCHE2D MODELQ1

MEANDERQ1

Abstract

The aim of this research was to apply a two-dimensional hydrodynamic model to predict and investigate governing phenomena on flow, sediment transport and bank erosion in a natural MEANDERing river. The study area is a MEANDER of KARUN RIVER with the length of approximately 5 km between Ahvaz and Farsiat hydrometric stations. Bank protection of the considered MEANDER is so important because the Khuzestan Water and Energy company structures and agricultural farms are located in the vicinity. In this study, mesh generation was performed by CCHE-MESH model. The validated CCHE2D model was applied for flow pattern simulation, and bed and bank change prediction in a 20 years period of time. Results showed the MEANDER Thalweg elevation was decreased between 4 to 8 m and 5.7 m in average (in compare with initial bed level) and secondary flow caused a higher decrease in outer bank elevation. Since the SPUR DIKE is an important structure in the river bank protection, 14 number of Spure dikes were designed in the CCHE-2D model for studied MEANDER. After 20 years of simulation, dikes caused to increase the elevation of outer bank between 1 to 9 m and 4.7 m in average (in compare with 20 years of simulation without dikes), But in some sections the Thalweg became approximately 4m deeper.

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APA: Copy

TAJBAKHSH, MOHAMMAD, & MUSAVI JAHROMI, SEYED HABIB. (2015). MODELING THE EFFECT OF SPUR DIKES ON BANK EROSION CONTROL USING CCHE2D (CASE STUDY: KARUN RIVER). IRANIAN WATER RESEARCH JOURNAL, 9(2 (17)), 79-89. SID. https://sid.ir/paper/159926/en

Vancouver: Copy

TAJBAKHSH MOHAMMAD, MUSAVI JAHROMI SEYED HABIB. MODELING THE EFFECT OF SPUR DIKES ON BANK EROSION CONTROL USING CCHE2D (CASE STUDY: KARUN RIVER). IRANIAN WATER RESEARCH JOURNAL[Internet]. 2015;9(2 (17)):79-89. Available from: https://sid.ir/paper/159926/en

IEEE: Copy

MOHAMMAD TAJBAKHSH, and SEYED HABIB MUSAVI JAHROMI, “MODELING THE EFFECT OF SPUR DIKES ON BANK EROSION CONTROL USING CCHE2D (CASE STUDY: KARUN RIVER),” IRANIAN WATER RESEARCH JOURNAL, vol. 9, no. 2 (17), pp. 79–89, 2015, [Online]. Available: https://sid.ir/paper/159926/en

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