Dam-break circulation water tank

Abstract

The invention discloses a dam-breaking circulating water tank, which comprises an experimental water tank, a dam-breaking gate, a water storage tank, a drainage gate, a water pump tank, a circulating water pump, a water inlet pipe, an upstream water injection pipe, a downstream water injection pipe, a drain pipe and an aqueduct; The gate is set in the experimental water tank, perpendicular to the water flow direction in the experimental water tank; the water storage tank is located directly below the experimental water tank and connected to the water outlet of the experimental water tank; the drainage gate is located in the experimental water tank, adjacent to the water outlet of the experimental water tank; the water pump tank is located in the water storage tank The side of the water tank is also connected to the water outlet of the water storage tank, and its absolute elevation is smaller than that of the water storage tank; the water inlet pipe, the upstream water injection pipe, the downstream water injection pipe and the water guide pipe are connected through a four-way connection, and the circulating water pump is connected to the water guide pipe. The device of the invention can efficiently and conveniently complete repeated dam break experiments, and can also be used for wave-making experiments and uniform water circulation experiments, and the slope adjustment function can cooperate with various hydrodynamic experiments, which greatly improves the scope of application.

Description

technical field [0001] The invention relates to hydrodynamic experiment facilities, in particular to a dam-breaking circulating water tank. Background technique [0002] For hydrodynamic prototype experiments, it is difficult to control various parameters separately, and the cost is high. For some projects, it is sometimes impossible to conduct prototype experiments before completion. Therefore, most current hydrodynamic experiments use model experiments. In the hydrodynamic model experiment, some problems can be solved by theoretical analysis or numerical calculation; however, the theoretical solution can only give the mean value of the flow field but not the real flow field fluctuation evolution process. In addition, the theoretical value is used to calculate the structural force There will be a lot of errors; numerical calculations cannot simulate the flow field well for complex wave flows, and the calculation efficiency is low; in addition, some problems are not clear be...

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Problems solved by technology

[0004] 1. The functions of the experimental water tanks used in the existing hydrodynamic experiments are relatively single, and the experimenters often need to build expensive experimental water tanks according to the needs of different experimental directions, and it is not convenient to use the same experimental water tank to complete various types. Hydrodynamic experiment

[0005] 2. General hydrodynamic experiments, especially dam break experiments, often require multiple sets of experiments due to the randomness of experimental data collection. After the dam break gate is opened, the upstream liquid will fill the entire tank. Before starting the next set of experiments, it is necessary to After the gate is closed, the downstream water body is manually moved back to the upstream. Since the downstream part of most experimental tanks usually adopts a closed design, this process is time-consuming and laborio

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