13-22Joseph M. Sinclair, S. Karan Venayagamoorthy, Timothy K. Gates,Some insights on flow over sharp-crested weirs using computational fluid dynamics: Implications for enhanced flow measurement, Journal of Irrigation and Drainage Engineering, 148.6; 2022. doi.org/10.1061/(ASCE)IR.1943-4774.0001652...
over GPR–B (R = 0.969, RMSD = 0.069 for testing) and ET–B (R = 0.927, RMSD = 0.1 for testing). The convergence of ET–B is faster than GMDH and GPR–B, making it a more computationally efficient model. Contributions BB and SNK analyzed the data and modeling th...
Experimental Investigation of the effect of Contraction on Scouring in Downstream of Combined flow over Weirs and below Gates Shahabi, M., Nasser, T., Ahmad, D.A., Abdoul-Rasoul,T., Reza, R.G.,(2011)" Experimental Investigation of the effect of Contraction on Scouring in Downstream of ...
These equations are applied to steady flow over a high overflow spillway crest, to obtain the head–discharge relationship and the crest-pressure distribution in good agreement with experiment. It is inferred that the equations are valid for quite large negative curvature. On the other hand, ...
They studied the sensitivity of driftwood blocking on piano weirs [18]. They found both the diameter and length of driftwood were affected by flow over the weir; when debris diameter reached two-third of the water head, a 50% blocking probability appeared. For low head, debris accumulated ...
over, in Mediterranean areas, shifts in the flowregime belowthese im- poundments may also result in change from perennial to temporary streams, leading to irreversible modifications in the ecosystemprocesses and services (Datry et al., 2014). With this perspective, a better under- standing...
When compared with experiment it is found to provide a good model for flows that pass through critical, in flumes, over weirs and embankments, and in undular bores.Key words: Boussinesq, flume, gradually-varied, long waves, non-hydrostatic, open channel, trans-critical, weirJohn D. Fenton...
In the normal mode without any weirs installed, however, there would be an increase in the flow rate, as compared to the mode where a weir has been installed. This can be associated with the flow controlled by the weir. On average, the deviation flow rate was increased by 2.8% in the...
The calibration experiment indicated that the simplified discharge function was correlated with data sets, with the determination coefficient 0.98. Moreover, the impact of exist of sediment in the sediment laden water on the estimation of runoff had been discussed. A calibration model to transform ...
So far, however, Jaeger’s and Fawer’s assumptions have not been investigated for ogee weirs. Thus, a flow net construction is required to propose improved approximate models for spillway flow. Flow over a spillway can be determined using either the Jaeger [44] or Fawer [43] theories. ...