complex culverts have a change of section (transition) at one or more positions along their lengths. the hydraulic performance cannot be estimated using simple culvert methods because the transition may change the control point. by modeling the flow through a transition as free flow, sluice flow, pipe flow and treating a complex culvert, as a series of simple culverts with the appropriate hydra...

An improved neuro-fuzzy based group method of data handling using the particle swarm optimization (NF-GMDH-PSO) is developed as an adaptive learning network to predict the localized scour downstream of a sluice gate with an apron. The input characteristic parameters affecting the scour depth are the sediment size and its gradation, apron length, sluice gate opening, and the flow conditions upst...

In the 1992 case of Rogers v. Whitaker, the High Court of Australia may not have rendered asunder the floodgates which metaphorically hold back the tide of American-style malpractice litigation. But though the sluice has not yet been fully breached, the flow of “blame and claim” law-suits has increased from a steady trickle to a minor torrent. Many of these are in the nature of “failure to warn...

Parallel sluice gates are used instead of a single large one in wide channels separated usually by piers between. However, the influence such separating on downstream flow hydraulic...

We studied the relationship of fetal and maternal vascular pressures to umbilical and uterine blood flow in the unanesthetized ewe and in the sheep fetus in utero by placing electromagnetic flow transducers around both the common umbilical and uterine arteries. Reductions in umbilical arterial pressure or elevations in umbilical venous pressure decreased umbilical blood flow without affecting e...

The purpose in this research, the performance of undershot waterwheel with hydraulic channel modifications were investigated. Testing was carried out on diameter 0,48 m, width 0,10 m and number blades 12. Weir 0,24 length headrace 0,1 under flow rate 0,105 m3/s variations sluice openings 0,06 to 0,12 guide 30° determine torque, power efficiency wheel. larger opening, torsional tendency, increas...