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- W4382045332 abstract "The reliable estimation of discharge passing through a channel is highly dependent on the velocity distribution at a particular cross-section. However, the velocity measurement throughout the depth of a channel section is challenging for high flows. The velocity index or surface velocity ratio (SVR) method is a standard method of transforming surface velocity to mean velocity to estimate the discharge in an open channel, although previous studies suggested a constant value of SVR (≈ 0.85) to determine the mean velocity, which neglects the variability in velocity distribution at different channel sections due to the dip phenomenon. Therefore, the present study proposes a regression-based relationship between SVR, aspect ratio, and the relative roughness of a channel section to explain the inconsistency in velocity estimation. The proposed relationship is comparable with the observed data for field and laboratory cases. Moreover, the estimated discharge validates closely with observed values, and it shows the potential of this method in predicting the discharge in open channels." @default.
- W4382045332 created "2023-06-27" @default.
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- W4382045332 date "2023-01-01" @default.
- W4382045332 modified "2023-09-24" @default.
- W4382045332 title "Estimation of Velocity Index for Flow Calculation in Open Channels Using Geometric and Hydraulic Characteristics" @default.
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- W4382045332 doi "https://doi.org/10.1007/978-981-19-9151-6_19" @default.
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