Numerical Modeling and Analysis of Flow Hydrodynamics in Flip Bucket and Approach Channel

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FARZIN S.; KARAMI H.; FAZLOLLAHNEJAD M.; Nayyer Sh.

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Paper Information

Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2018 | Volume:12 | Issue:41 Page(s): 41-50

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Title

Numerical Modeling and Analysis of Flow Hydrodynamics in Flip Bucket and Approach Channel

Author(s)

FARZIN S. | KARAMI H. | FAZLOLLAHNEJAD M. | Nayyer Sh. | Issue Writer Certificate

Keywords

Flip bucketQ1

Approach channelQ1

Energy dissipationQ1

Turbulence modelsQ1

Flow-3DQ1

Abstract

Flip bucket is the main part of an Energy dissipation structure called ski jump system. In this research, hydraulic characteristics such as jet length, velocity, pressure and Froude Number in four discharges are studied by Flow-3D in two models including spillway with simple Flip bucket and spillway with Approach channel. For turbulence modeling, RNG and models are used. Validation showed that model is more accurate. The results indicate that the Approach channel model has longer jet length and more Energy dissipation compared to the other model. In this model, maximum velocity, equal to 2. 30 meter per second, occurs at the beginning of the channel for 20 liters per second discharge. Also, maximum increase percentage in velocity happens in the model of Approach channel spillway amounting 32 percent for discharge of 15 liters per second. The results of pressure analysis show that the pressure changes in the two models have no tangible differences. Moreover, maximum pressure is on the toe of the spillway in the first model amounting 2833 Pa for discharge of 25 liters per second. Additionally, maximum Froude Number (4. 5) occurs at jet fall in the simple Flip bucket model and in Approach channel model it occurs in the channel.

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APA: Copy

FARZIN, S., KARAMI, H., FAZLOLLAHNEJAD, M., & Nayyer, Sh.. (2018). Numerical Modeling and Analysis of Flow Hydrodynamics in Flip Bucket and Approach Channel. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 12(41 ), 41-50. SID. https://sid.ir/paper/134701/en

Vancouver: Copy

FARZIN S., KARAMI H., FAZLOLLAHNEJAD M., Nayyer Sh.. Numerical Modeling and Analysis of Flow Hydrodynamics in Flip Bucket and Approach Channel. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2018;12(41 ):41-50. Available from: https://sid.ir/paper/134701/en

IEEE: Copy

S. FARZIN, H. KARAMI, M. FAZLOLLAHNEJAD, and Sh. Nayyer, “Numerical Modeling and Analysis of Flow Hydrodynamics in Flip Bucket and Approach Channel,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 12, no. 41 , pp. 41–50, 2018, [Online]. Available: https://sid.ir/paper/134701/en

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