Application and Assessment of SVM Algorithm to Simulate the Geometry of Scour Hole Downstream of a Siphon Spillway

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Fuladipanah M.; Majedi Asl M.; Jafarinia R.

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Journal: Iranian Journal of Irrigation and Drainage Year:2020 | Volume:13 | Issue:3 Page(s): 1032-1045

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Title

Application and Assessment of SVM Algorithm to Simulate the Geometry of Scour Hole Downstream of a Siphon Spillway

Author(s)

Fuladipanah M. | Majedi Asl M. | Jafarinia R. | Issue Writer Certificate

Keywords

Performance AssessmentQ2

Plunge PoolQ1

Dimensional AnalysisQ1

SVM AlgorithmQ1

Abstract

Accurate simulation of scour hole’ s geometric specifications, created due to flow jet collision to Plunge Pool bed, has a significant role in the design, construction and performance of weirs and energy dissipater structures. In this research, a comparative evaluation was done between experimental and numerical study of scour phenomena downstream of a siphon spillway using SVM Algorithm with three sediment particles and three buckets angles for different magnitudes of flow discharge and tail water depths in a rectangular flume made from plexiglas. Three linear-independent dimensionless parameters were formed. Classic linear and non-linear regression model and FFBP and CFBP neural networks were applied more over the SVM Algorithm to simulate the scour hole dimensions and were compared using five statistical indices as R, RMSE, MAE, N. S and DDR. A comparison of the quintuple accuracy indices showed that SVM Algorithm had better performance than to the other models, especially classic regression ones. Among all parameters, SVM Algorithm had acceptable prediction with higher and lower level of accuracy for LSht and L6ht by quintuple above mentioned indices as (0. 9954, 0. 2056, 0. 987, 0. 9851, 7. 855) and (0. 8924, 2. 860, 2. 23, 0. 7587, 1. 405), respectively. Finally, a comparison was done among SVM Algorithm and empirical predictors of scour hole depth. Comparison of accuracy indices showed that the SVM had a tangible and absolute advantage over empirical equations presented by other researchers.

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APA: Copy

Fuladipanah, M., Majedi Asl, M., & Jafarinia, R.. (2020). Application and Assessment of SVM Algorithm to Simulate the Geometry of Scour Hole Downstream of a Siphon Spillway. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 13(3 ), 1032-1045. SID. https://sid.ir/paper/381759/en

Vancouver: Copy

Fuladipanah M., Majedi Asl M., Jafarinia R.. Application and Assessment of SVM Algorithm to Simulate the Geometry of Scour Hole Downstream of a Siphon Spillway. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2020;13(3 ):1032-1045. Available from: https://sid.ir/paper/381759/en

IEEE: Copy

M. Fuladipanah, M. Majedi Asl, and R. Jafarinia, “Application and Assessment of SVM Algorithm to Simulate the Geometry of Scour Hole Downstream of a Siphon Spillway,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 13, no. 3 , pp. 1032–1045, 2020, [Online]. Available: https://sid.ir/paper/381759/en

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