APPLICATION OF THE NEAREST NEIGHBOR ALGORITHM TO PREDICT CAVITATION DAMAGE ON SPILLWAYS

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FADAEI KERMANI EHSAN; BARANI GHOLAM ABBAS; Ghaeini Hessaroeyeh Mahnaz

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Journal: Journal of Irrigation and Water Engineering Year:2017 | Volume:7 | Issue:28 Page(s): 15-25

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Title

APPLICATION OF THE NEAREST NEIGHBOR ALGORITHM TO PREDICT CAVITATION DAMAGE ON SPILLWAYS

Author(s)

FADAEI KERMANI EHSAN | BARANI GHOLAM ABBAS | Ghaeini Hessaroeyeh Mahnaz | Issue Writer Certificate

Keywords

CAVITATION DAMAGEQ1

SHAHID ABBASPOUR DAM SPILLWAYQ1

FLOW VELOCITYQ1

CAVITATION INDEXQ1

NEAREST NEIGHBOR ALGORITHMQ1

Abstract

In this paper, the NEAREST NEIGHBOR ALGORITHM has been applied to predict CAVITATION DAMAGE on dam spillways. In this research, based on FLOW VELOCITY and CAVITATION INDEX, five different damage levels from 'no CAVITATION DAMAGE' to 'major CAVITATION DAMAGE' have been determined.The hydraulic characteristics of flow over the SHAHID ABBASPOUR DAM SPILLWAY were calculated for different flow rates. Then, the NEAREST NEIGHBOR ALGORITHM has been applied to predict CAVITATION DAMAGE levels and locations on this dam spillway for different flow rates.Comparison of the model results with the observed damages occurred during past floods on this spillway structure, shows that this algorithm predict damage levels and locations appropriately.Finally, the efficiency and precision of the model results have been evaluated by some statistical coefficients. Appropriate values of the correlation coefficient (r=0.896), the Mean Absolute Error (MAE=0.101), the Root Mean Square Error (RMSE=0.108) and Efficiency of model (EF=0.813) confirm that the present model can be suitable and efficient.

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APA: Copy

FADAEI KERMANI, EHSAN, BARANI, GHOLAM ABBAS, & Ghaeini Hessaroeyeh, Mahnaz. (2017). APPLICATION OF THE NEAREST NEIGHBOR ALGORITHM TO PREDICT CAVITATION DAMAGE ON SPILLWAYS. IRANIAN OF IRRIGATION & WATER ENGINEERING, 7(28 ), 15-25. SID. https://sid.ir/paper/247360/en

Vancouver: Copy

FADAEI KERMANI EHSAN, BARANI GHOLAM ABBAS, Ghaeini Hessaroeyeh Mahnaz. APPLICATION OF THE NEAREST NEIGHBOR ALGORITHM TO PREDICT CAVITATION DAMAGE ON SPILLWAYS. IRANIAN OF IRRIGATION & WATER ENGINEERING[Internet]. 2017;7(28 ):15-25. Available from: https://sid.ir/paper/247360/en

IEEE: Copy

EHSAN FADAEI KERMANI, GHOLAM ABBAS BARANI, and Mahnaz Ghaeini Hessaroeyeh, “APPLICATION OF THE NEAREST NEIGHBOR ALGORITHM TO PREDICT CAVITATION DAMAGE ON SPILLWAYS,” IRANIAN OF IRRIGATION & WATER ENGINEERING, vol. 7, no. 28 , pp. 15–25, 2017, [Online]. Available: https://sid.ir/paper/247360/en

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