SIMULATION OF LOCAL SCOUR CAUSED BY SUBMERGED HORIZONTAL JETS WITH FLOW-3D NUMERICAL MODEL

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MEHNIFARD M.A.; DALFARDI S.; BAGHDADI H.; SEIRFAR Z.

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Journal: Desert Year:2015 | Volume:20 | Issue:1 Page(s): 47-55

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Title

SIMULATION OF LOCAL SCOUR CAUSED BY SUBMERGED HORIZONTAL JETS WITH FLOW-3D NUMERICAL MODEL

Author(s)

MEHNIFARD M.A. | DALFARDI S. | BAGHDADI H. | SEIRFAR Z. | Issue Writer Certificate

Keywords

SCOURING

HORIZONTAL DROWNED JET

NUMERICAL MODEL

Abstract

One of the most concerning issues for researchers is to predict the shape and dimensions of the scour pit near hydraulic structures such as the base of bridges, weirs, valves and stilling basins due to both financial and human hazards induced by destruction of the structure. As the scour issue has its own complexity in relation to the multiplicity of effecting factors on it, in this study therefore, the results of laboratory analysis of local scour due to submerged horizontal jets were compared with numerical simulation results from Flow-3D three-dimensional model to test the potency of the NUMERICAL MODEL. As a result, the model is proposed in place of the experimental model which has its own drawbacks and high costs. In this study, we measure maximum scour depth in relative equilibrium in 2 states and 6 test modes with different valve openings and tail water depth per different discharges. Comparison of the results indicates about 11% error for Flow-3D NUMERICAL MODEL in relation to the experimental model which by considering the complexity of scour and deposition phenomena, is considered a good result.

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APA: Copy

MEHNIFARD, M.A., DALFARDI, S., BAGHDADI, H., & SEIRFAR, Z.. (2015). SIMULATION OF LOCAL SCOUR CAUSED BY SUBMERGED HORIZONTAL JETS WITH FLOW-3D NUMERICAL MODEL. DESERT (BIABAN), 20(1), 47-55. SID. https://sid.ir/paper/659044/en

Vancouver: Copy

MEHNIFARD M.A., DALFARDI S., BAGHDADI H., SEIRFAR Z.. SIMULATION OF LOCAL SCOUR CAUSED BY SUBMERGED HORIZONTAL JETS WITH FLOW-3D NUMERICAL MODEL. DESERT (BIABAN)[Internet]. 2015;20(1):47-55. Available from: https://sid.ir/paper/659044/en

IEEE: Copy

M.A. MEHNIFARD, S. DALFARDI, H. BAGHDADI, and Z. SEIRFAR, “SIMULATION OF LOCAL SCOUR CAUSED BY SUBMERGED HORIZONTAL JETS WITH FLOW-3D NUMERICAL MODEL,” DESERT (BIABAN), vol. 20, no. 1, pp. 47–55, 2015, [Online]. Available: https://sid.ir/paper/659044/en

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