A wave flow generation system with a rear-mounted water tank at the outlet

Abstract

The invention relates to the technical field of hydraulic model tests, and provides a wave flow generation system for a water tank with a rear outlet. By setting a rear outlet and a rectification device under the water tank, the rectification device includes a rectification chamber and a built-in Rectification grid, one end of the rectification chamber is connected with the water collection tank, and the other end is connected with the bottom wall of the tank unit, and the outlet of the bottom wall is located at the front end of the wave machine in the wave pushing direction, and the water flow of the preliminary energy dissipation in the water collection tank is rectified After the gate is rectified into a smooth fluid, a steady flow is input into the tank, and the water flow driven by the wave-pushing plate provided on the wave-making machine is a steady flow meeting the test requirements; the water intake of the water inlet and the pushing force of the wave-pushing plate are intelligently controlled by a computer. The wave speed meets the requirements of flow-making and wave-making tests, and completely solves the technical problem that the water inlet pipe is installed on the push-wave plate because the water flow is vortex-shaped and needs to go through a long transition section to stabilize the flow, meeting the requirements of straight-line tank flow. Unlimited usage principle.

Description

technical field [0001] The invention relates to the technical field of hydraulic model tests, in particular to a wave flow generating system of a rear-mounted water tank at an outlet. Background technique [0002] The simulation of waves and currents is an important means of hydraulic and port engineering tests. In marine and near-shore engineering, tests such as fishing port fish reefs, seawall sections, and sediment start-up transport must be powered by waves and currents. Therefore, the wave-making system and the current-making system are required to be used in the flume model tests of the above-mentioned projects, and in most cases, the combined action of waves and currents is required. [0003] In the wave flow tank, the method of installing a wave machine and a flow pump at the end of the tank is often used to simulate the working condition of the test structure under the action of the wave flow. The traditional wave flow generation system of the water tank, in order t...

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Problems solved by technology

[0003] In the wave flow tank, the method of installing a wave machine and a flow pump at the end of the tank is often used to simulate the working condition of the test structure under the action of the wave flow. The traditional wave flow generation system of the water tank, in order to avoid the resistance of the push wave plate to the water flow Usually, the water inlet pipe is directly installed at the front end of the push wave direction of the push wave plate, that is, the outlet is in front, but there are the following defects: since the water inlet pipe is directly installed in front of the push wave plate, the output water flow is vortex After entering the square tank in a spiral shape, it needs to go through a long transition section to stabilize the flow, that is, the tank itself needs to be long enough to meet the test requirements; because the water flow output from the outlet is in a vortex shape, the water flow will destroy the wave when it needs the combined action of waves and currents The shape, that is, the simultaneous generation of waves and currents cannot be realized; the tail end of the tank is about 4-6m long and cannot be used for the transition section of the water flow, which violates the infinitely long use principle of straight-line tank flow

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