Horizontal swing plate type internal wave generation device

Abstract

The invention aims to provide a horizontal swing plate type internal wave generation device. The horizontal swing plate type internal wave generation device comprises a wave generation mechanism, a control and measurement system and a machine base. The wave generation mechanism is a horizontal swing plate type wave generation mechanism. A swing plate is placed at the junction of two layers of flowing liquid levels, is driven by a crank and rocker mechanism and can do reciprocating wave generation motion up and down at the junction of the two layers of flowing liquid levels to generate periodical internal waves. The control and measurement system provides control signals for the wave generation mechanism and feeds back the motion frequency of a motor. The wave generation mechanism and the measurement system are supported by the machine base to make the whole device integrated, and the machine base also has the wave absorbing function. Due to the adoption of the horizontal swing plate type internal wave generation device, complex wave generation motion can be carried out at the junction of the two layers of flowing liquid levels by the swing plate to generate the periodical internal waves without generating surface waves at the same time when ocean internal waves are truly simulated, and interference of surface waves in original experiments is completely eliminated. The device is simple in structure, convenient to operate, high in motion precision and low in energy consumption and has good application and market value.

Description

technical field [0001] The present invention relates to an experimental device, in particular to an experimental device for generating periodic internal waves. Background technique [0002] As a kind of mesoscale fluctuation in the ocean, internal ocean wave is an important part of various scale phenomena in physical oceanography, and it is also one of the elements that must be considered when establishing ocean hydrodynamic models. As more and more marine structures work in the deep sea, it is becoming more and more important to study the effects of internal ocean waves on various marine structures. Especially for underwater vehicles, studying the effect of internal waves in the ocean and understanding the damage mechanism of internal waves to structures can greatly reduce the threat of internal waves in the ocean. The laboratory simulation of internal waves in the ocean is an important method to verify the theory of internal waves, and it is also an important means to sol...

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Problems solved by technology

At present, the laboratory usually adopts three wave-making methods of punching box, shaking plate and pushing plate to generate periodic internal waves, but they also generate surface waves while generating internal waves, which will inevitably affect the water on the surface of stratified flow. The dynamic characteristics will affect the propagation of internal waves, and at the same time, it will also cause great interference to the analysis and collection of experimental data, affecting the experimental results

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