This study investigates experimentally and numerically the effects of sills with different geometric specifications at various positions on hydraulic characteristics flow through sluice gates. The simulation results showed that RNG turbulence model’s statistical indicators yield high accuracy compared to k-?, k-?, LES models. discharge coefficient (Cd) has an inverse relationship gate opening. ...

Changes in water diversion flow are the major disturbance sources daily operation of projects. Ensuring efficient and safe project while dealing with different degrees is crucial for real-time control operation. Based on historical projects China abroad, this study constructs conditions, selects typical lines, objectives lines. The discrete state space equation multi-channel pool integral time-...

Hydrological jump characteristics in a rectangular open channel flume with sluice gates at both ends are the focus of this article. Among many aspects hydraulic that have been examined analytically and experimentally are: (i) Sequent depth relation (y2y1), (ii) Length jump, (iii) Relative loss energy (ELE1), (iv) Water profile jump. There was total 15 inflow tests conducted. With values between...

Free surface potential flows past disturbances in a channel are considered. Three different types of disturbance are studied: (i) a submerged obstacle on the bottom of a channel; (ii) a pressure distribution on the free surface; and (iii) an obstruction in the free surface (e.g. a sluice gate or a flat plate). Surface tension is neglected, but gravity is included in the dynamic boundary conditi...

This paper investigates experimentally the generalizations made in AnderBois (2010, 2011, 2014) that a sluice may never take an appositive clause as its antecedent. We find that experimental participants rated sentences with sluiceantecedents in appositives as acceptable. We highlight two factors which influence the acceptability of appositive antecedents for sluices:whether the indefinite NP a...