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- W3044940166 abstract "The present study investigated the flow discharge coefficient (Cdt) in the combined rectangular broad crested weir-gate structure. To this end, the effect of the following dimensionless parameters on the Cdt were investigated: the width ratio of the central weir to the width of the total structure (B/Bo), the height ratio of the central weir to the height of the central weir floor (Z/P), the ratio of the gate width to the width of the total structure (b/Bo), the ratio of the gate opening height to the height of the central weir floor (d/P), and the ratio of the head on central weir to the total head behind the structure (h1/H). The Flow-3D numerical model, artificial intelligence models such as linear multilayer perceptron (MLP), Canfis network (CNN), recurrent network (RNN), modular neural network (MNN), and regression equation, were used to estimate the Cdt. The results indicated that increasing d/P and b/Bo ratios led to a decline in this coefficient. In the case of h1/H ≤ 0.4, an increase in B/Bo ratio resulted in decreasing the turbulence intensity and Cdt while the impact of enhancing the size of B/Bo was not significant if h1/H > 0.4. Besides, increasing Z/P ratio caused an increase in resistance against the flow and thus a decline in Cdt. Further, the results of artificial intelligence models and regression equation demonstrated that the MNN model with an RMSE and R2 of 0.03 and 0.97, respectively, could have an accurate estimate of the Cdt values." @default.
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- W3044940166 date "2020-10-01" @default.
- W3044940166 modified "2023-10-02" @default.
- W3044940166 title "Discharge coefficient in the combined weir-gate structure" @default.
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- W3044940166 doi "https://doi.org/10.1016/j.flowmeasinst.2020.101780" @default.
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