This paper reported on the free-surface wave behavior in a rectangular open-channel, induced by sluice-gate maneuvers. The numerical solver was based on the (2/4)-dissipative scheme being used for the numerical discretization of the one-dimensional Extended St-Venant model embedding the Boussinesq add-on term. The numerical solver was firstly validated against experimental data and alternative numerical solver quoted in the literature. Then, the fundamental pulsation of the hydraulic system was inspected using the analogy with the water-hammer theory observed in pressurized-pipe flow. Different flow scenarios were reported; including the superposition between a downstream water-hammer maneuver and sine excitation of upstream flow depth using different pulsation values. Results highlighted that such sluice-gates maneuvers involved severe scenarios leading to significant amplification of the depth peak and crest values above the initial value.

本文报道了由闸门操纵引起的矩形明渠中的自由表面波行为。数值求解器基于 (2/4) 耗散方案，用于嵌入 Boussinesq 附加项的一维扩展 St-Venant 模型的数值离散化。数值求解器首先根据实验数据和文献中引用的替代数值求解器进行了验证。然后，使用与在加压管流中观察到的水锤理论进行类比来检查液压系统的基本脉动。报告了不同的流量场景；包括使用不同脉动值的下游水锤操作和上游水流深度的正弦激励之间的叠加。