Three-dimensional coupling measuring and control device and method

Abstract

The invention discloses a three-dimensional coupling measuring and control device and method. The device comprises a wave maker, water inlets and outlets in the two ends, an experiment area, a water reservoir, a water level measuring instrument, a wave height meter, an industrial personal computer, a frequency converter and a bidirectional pump motor. The industrial control computer generates a water level adjusting instruction according to the water level change detected by the water level measuring instrument and sends the instruction to the frequency converter, so that the frequency converter controls the rotation speed and rotation direction of the bidirectional pump motor according to the water level adjusting instruction, water in a test area is pumped to the water reservoir throughthe water inlets and outlets at the two ends, and the water level of the test area reaches a set water level; and automatic iterative correction and splicing are carried out on a plurality of discretewave making files according to a simulation result detected by the wave height meter, and processed wave making files are sent to the wave making machine, so that the wave making machine carries outwave making according to the processed wave making files, and the water level of the test area reaches a set wave height and a set period. According to the invention, three-dimensional coupling experiments of wave, tide and storm surge simulation in a laboratory can be realized.

Description

technical field [0001] The invention relates to the technical field of coastal engineering physical model experiments, in particular to a three-dimensional coupling measurement and control device and method. Background technique [0002] At present, there are domestic simulation methods for storm surge and wave dynamic coupling in two-dimensional tanks (Chen Maowen, Pan Junning, Wang Dengting, et al. Research on wave and tide coupling simulation technology [J]. Water Transport Engineering, 2019, 551(01): 38- 43.), in the experiment, the continuous storm surge water level change process was superimposed on the encrypted and discrete wave process, and the water level was realized in the laboratory two-dimensional tank by using the flume wave generator and the tailgate tide generating equipment to continuously generate tide waves. The synchronous change with the wave realizes the dynamic coupling simulation of the wave and the tide. The above simulation methods cannot truly re...

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Problems solved by technology

[0006] 1. Due to oblique incidence of waves, shallow water deformation, refraction and diffraction, some areas or parts (such as embankment head sections, corner sections, and sections with large terrain changes) will present complex three-dimensional hydrodynamic characteristics, two-dimensional Only the positive effect of waves can be considered in the tank, and it cannot reflect the three-dimensional hydrodynamic characteristics of waves brought about by oblique incidence, which is different from the actual situation and poses a safety hazard

[0007] 2. The randomness of breaking and deformation of waves on complex terrain is very large, and the stability of breakwaters under reef terrain is significantly reduced. The two-dimensional tank cannot reflect the terrain changes near the actual engineering area, so it cannot better reflect the relationship between waves and Three-dimensional terrain, especially the propagation deformation under complex terrain conditions

[0008] 3. The two-dimensional flume cannot fully reflect the propagation of waves on the rear three-dimensional land area after the seawall breaks, cannot reflect the real process of flood influx, propagation and retreat, and cannot fully simulate the entire process of disaster damage

[0010] 1. The selection of water levels is limited, and it cannot be guaranteed to include the most unfavorable water levels for the actual project, and there are potential safety hazards in the project

[0011] 2. In the actual storm surge process, the action time of high water level is often short, and the traditional test method is too conservative when used for high water level, which increases the cost of the project and causes unnecessary waste of resources

[0012] 3. The simulated water level change process does not match the reality, and cannot reflect the real function and damage process of storm surges and seawalls and other coastal structures

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