PREDICTING THE DISCHARGE COEFFICIENT OF TRIANGULAR PLAN FORM WEIRS USING RADIAN BASIS FUNCTION AND M5’ METHODS

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AKHBARI AZAM; ZAJI AMIR HOSSEIN; AZIMI HAMED; VAFAEIFARD MOHSEN

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Journal Paper

Paper Information

Journal: JOURNAL OF APPLIED RESEARCH IN WATER AND WASTEWATER Year:2017 | Volume:4 | Issue:1 Page(s): 281-289

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Title

PREDICTING THE DISCHARGE COEFFICIENT OF TRIANGULAR PLAN FORM WEIRS USING RADIAN BASIS FUNCTION AND M5’ METHODS

Author(s)

AKHBARI AZAM | ZAJI AMIR HOSSEIN | AZIMI HAMED | VAFAEIFARD MOHSEN | Issue Writer Certificate

Keywords

TRIANGULAR PLAN FORM WEIR

DISCHARGE COEFFICIENT

RADIAL BASIS NEURAL NETWORKS

M5’ METHOD

SENSITIVITY ANALYSIS

Abstract

Weirs are installed on open channels to adjust and measure the flow. Also, DISCHARGE COEFFICIENT is considered as the most important hydraulic parameter of a weir. In this study, using the Radial Base Neural Networks (RBNN) and M5' methods, the DISCHARGE COEFFICIENT of TRIANGULAR PLAN FORM WEIRs is modeled. At first, the effective parameters in the prediction of the DISCHARGE COEFFICIENT are identified. Then, by combining the input parameters, for each of the RBNN and M5' methods, six different models are introduced. By analyzing the modeling results for all models, it was shown that the M5' model is capable of modeling the DISCHARGE COEFFICIENT more accurately. Also, based on the modeling results, a model that considered the impact of all input parameters was introduced as a superior model. The mean absolute percentage error (MAPE) and correlation coefficients (R2) values for the preferred model in the test mode were calculated 2.774 and 0.831, respectively. Also, for each of the M5' models, some relationships were proposed to estimate the TRIANGULAR PLAN FORM WEIRs. The evaluation of these relationships showed that the parameters of the ratio of head over the weir to channel width (h/B) and Froude number (Fr) were the most effective parameters in the prediction of the DISCHARGE COEFFICIENT.

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APA: Copy

AKHBARI, AZAM, ZAJI, AMIR HOSSEIN, AZIMI, HAMED, & VAFAEIFARD, MOHSEN. (2017). PREDICTING THE DISCHARGE COEFFICIENT OF TRIANGULAR PLAN FORM WEIRS USING RADIAN BASIS FUNCTION AND M5’ METHODS. JOURNAL OF APPLIED RESEARCH IN WATER AND WASTEWATER, 4(1), 281-289. SID. https://sid.ir/paper/352866/en

Vancouver: Copy

AKHBARI AZAM, ZAJI AMIR HOSSEIN, AZIMI HAMED, VAFAEIFARD MOHSEN. PREDICTING THE DISCHARGE COEFFICIENT OF TRIANGULAR PLAN FORM WEIRS USING RADIAN BASIS FUNCTION AND M5’ METHODS. JOURNAL OF APPLIED RESEARCH IN WATER AND WASTEWATER[Internet]. 2017;4(1):281-289. Available from: https://sid.ir/paper/352866/en

IEEE: Copy

AZAM AKHBARI, AMIR HOSSEIN ZAJI, HAMED AZIMI, and MOHSEN VAFAEIFARD, “PREDICTING THE DISCHARGE COEFFICIENT OF TRIANGULAR PLAN FORM WEIRS USING RADIAN BASIS FUNCTION AND M5’ METHODS,” JOURNAL OF APPLIED RESEARCH IN WATER AND WASTEWATER, vol. 4, no. 1, pp. 281–289, 2017, [Online]. Available: https://sid.ir/paper/352866/en

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