PREDICTION OF PLUNGE POINT IN THE DENSITY CURRENT USING RNG TURBULENCE MODELING

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ARJMANDI H.; GHOMESHI M.; AHADIAYN J.; GOLEIJ G.

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Journal: WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE) Year:2012 | Volume:22 | Issue:1 Page(s): 171-185

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Title

PREDICTION OF PLUNGE POINT IN THE DENSITY CURRENT USING RNG TURBULENCE MODELING

Author(s)

ARJMANDI H. | GHOMESHI M. | AHADIAYN J. | GOLEIJ G. | Issue Writer Certificate

Keywords

BED SLOPEQ4

PLUNGE POINT DEPTHQ2

RNG MODELQ3

SIMULATIONQ4

TURBULENCE MODELQ4

Abstract

When the density current smashes into the lower dense fluid mass a plunge region will occur. Since the plunge depth bounds between density current and ambient fluid, determining of this point is important. In this research, the hydraulic parameters of density current and BED SLOPE of stagnant fluid were investigated. To achieve the purpose of this research a physical model was built in the hydraulic laboratory of Shahid Chamran University (SCU) and various experiments were performed. In the experiments, the plunge depth at the different discharge of density current and density difference 6, 9, 13 and 16 kg/m3 at three slopes 8, 12 and 16% was measured. Then using Flow-3D under RNG TURBULENCE MODEL, plunge depth was simulated for the same experimental condition. The comparison of results obtained showed that the predicted plunge depth with Flow-3D under RNG TURBULENCE MODEL had a high and satisfactory accuracy. Finding showed that for the 8% BED SLOPE, the results of RNG TURBULENCE MODEL 14% was more than experimental data. While, for the entire slope, the results of RNG TURBULENCE MODEL was predicted 10.5% in average more than measured data. Generally, the statistical investigations showed that the RNG TURBULENCE MODEL with satisfactory precision estimated the PLUNGE POINT DEPTH.

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APA: Copy

ARJMANDI, H., GHOMESHI, M., AHADIAYN, J., & GOLEIJ, G.. (2012). PREDICTION OF PLUNGE POINT IN THE DENSITY CURRENT USING RNG TURBULENCE MODELING. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), 22(1), 171-185. SID. https://sid.ir/paper/147871/en

Vancouver: Copy

ARJMANDI H., GHOMESHI M., AHADIAYN J., GOLEIJ G.. PREDICTION OF PLUNGE POINT IN THE DENSITY CURRENT USING RNG TURBULENCE MODELING. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE)[Internet]. 2012;22(1):171-185. Available from: https://sid.ir/paper/147871/en

IEEE: Copy

H. ARJMANDI, M. GHOMESHI, J. AHADIAYN, and G. GOLEIJ, “PREDICTION OF PLUNGE POINT IN THE DENSITY CURRENT USING RNG TURBULENCE MODELING,” WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), vol. 22, no. 1, pp. 171–185, 2012, [Online]. Available: https://sid.ir/paper/147871/en

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