NUMERICAL STUDY OF THE EFFECT OF DISCHARGE ON FLOW PATTERN AROUND A SUBMERGED SPUR DIKE IN AN OPEN CHANNEL

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VAGHEFI MOHAMMAD; EGHBALZADEH AFSHIN; ROSTAMNEZHAD MOKHTAR

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Journal: Journal of Water Resources Engineering Year:2016 | Volume:9 | Issue:28 Page(s): 67-80

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Title

NUMERICAL STUDY OF THE EFFECT OF DISCHARGE ON FLOW PATTERN AROUND A SUBMERGED SPUR DIKE IN AN OPEN CHANNEL

Author(s)

VAGHEFI MOHAMMAD | EGHBALZADEH AFSHIN | ROSTAMNEZHAD MOKHTAR | Issue Writer Certificate

Keywords

SUBMERGED SPUR DIKEQ2

FREE SURFACEQ1

NUMERICAL SIMULATIONQ1

FLOW-3DQ2

Abstract

One of the important purposes of river engineering science is to protect river banks from erosion phenomenon and to prevent shifting of the main channel path. Spur dike is a hydraulic structure which has a lot of applications for stabilizing river banks and increasing water depth. According to widespread use of this structure, it is important to understand the flow pattern around it. Since flow pattern around a spur dike is complex and fully 3D, 3D simulation was done in this study. FLOW-3D software was employed to simulate the flow around a SUBMERGED SPUR DIKE. VOF method was used for FREE SURFACE simulation and RNG k-ε model was used for turbulence modeling. Based on comparison of numerical and experimental results for stream wise velocity component and flow depth, it was concluded that numerical model could simulate the flow parameters with relatively high accuracy. In following, the effect of discharge increase on velocity profiles and flow FREE SURFACE was investigated. According to obtained results, maximum longitudinal velocity Infront of the spur dike nose and flow depth at the upstream of spur dike increased with discharge increase. In lower discharges, the changes rate was more and vice versa. Also, the ratio of the flow depth at the upstream and the flow depth at the downstream increased with discharge increase.

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APA: Copy

VAGHEFI, MOHAMMAD, EGHBALZADEH, AFSHIN, & ROSTAMNEZHAD, MOKHTAR. (2016). NUMERICAL STUDY OF THE EFFECT OF DISCHARGE ON FLOW PATTERN AROUND A SUBMERGED SPUR DIKE IN AN OPEN CHANNEL. WATER ENGINEERING, 9(28), 67-80. SID. https://sid.ir/paper/169407/en

Vancouver: Copy

VAGHEFI MOHAMMAD, EGHBALZADEH AFSHIN, ROSTAMNEZHAD MOKHTAR. NUMERICAL STUDY OF THE EFFECT OF DISCHARGE ON FLOW PATTERN AROUND A SUBMERGED SPUR DIKE IN AN OPEN CHANNEL. WATER ENGINEERING[Internet]. 2016;9(28):67-80. Available from: https://sid.ir/paper/169407/en

IEEE: Copy

MOHAMMAD VAGHEFI, AFSHIN EGHBALZADEH, and MOKHTAR ROSTAMNEZHAD, “NUMERICAL STUDY OF THE EFFECT OF DISCHARGE ON FLOW PATTERN AROUND A SUBMERGED SPUR DIKE IN AN OPEN CHANNEL,” WATER ENGINEERING, vol. 9, no. 28, pp. 67–80, 2016, [Online]. Available: https://sid.ir/paper/169407/en

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