NUMERICAL MODELING OF LOCAL SCOURING AROUND GROUP BRIDGE PIERS AND COMPARED WITH EXPERIMENTAL RESULTS

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MAHJOUB B.; MOHAMMADNEJAD B.; BEHMANESH J.

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Journal: Journal of Water and Soil Year:2014 | Volume:28 | Issue:2 Page(s): 267-275

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Title

NUMERICAL MODELING OF LOCAL SCOURING AROUND GROUP BRIDGE PIERS AND COMPARED WITH EXPERIMENTAL RESULTS

Author(s)

MAHJOUB B. | MOHAMMADNEJAD B. | BEHMANESH J. | Issue Writer Certificate

Keywords

SCOUR HOLEQ2

CIRCULAR PIERQ2

SEDIMENTQ2

NUMERICAL SIMULATIONQ1

THE TWO-PHASE MODEL EULERIANQ2

Abstract

Bridges are the most important structures in river engineering. One of the most causes in bridges destruction is local scouring around the bridge piers. Many bridges failed in the world because of the extreme scour around piers, which have caused to disappear a lot of investments. Then, it is essential to predict the scour depth around bridge piers. In this research, the Fluent three-dimensional numerical model was used to investigate the scouring around the group cylindrical pier in clear water and uniform sand bed conditions. In this model, SEDIMENTary flow was considered as two-phase flow (water - sand) and Eulerian two-phase model was used. To estimate the parameters of flow turbulence in the water phase, the RNG K-e model was used. To evaluate and verify the numerical model, the computational results were compared with experimental data. The maximum scour depth in front of the first pier on a numerical model equal to 12.5 cm and in experimental model equal to 12 cm have been measured. Also scour depth at the second pier less than that at the first pier and scour depth at the third pier has been less than the values of the first and second pier. The results showed that the two phase model can simulate the scour phenomena around the pier.

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APA: Copy

MAHJOUB, B., MOHAMMADNEJAD, B., & BEHMANESH, J.. (2014). NUMERICAL MODELING OF LOCAL SCOURING AROUND GROUP BRIDGE PIERS AND COMPARED WITH EXPERIMENTAL RESULTS. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 28(2), 267-275. SID. https://sid.ir/paper/141622/en

Vancouver: Copy

MAHJOUB B., MOHAMMADNEJAD B., BEHMANESH J.. NUMERICAL MODELING OF LOCAL SCOURING AROUND GROUP BRIDGE PIERS AND COMPARED WITH EXPERIMENTAL RESULTS. JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2014;28(2):267-275. Available from: https://sid.ir/paper/141622/en

IEEE: Copy

B. MAHJOUB, B. MOHAMMADNEJAD, and J. BEHMANESH, “NUMERICAL MODELING OF LOCAL SCOURING AROUND GROUP BRIDGE PIERS AND COMPARED WITH EXPERIMENTAL RESULTS,” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 28, no. 2, pp. 267–275, 2014, [Online]. Available: https://sid.ir/paper/141622/en

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