Arbitrary-amplitude internal solitary wave generation and propagation process experiment system

Abstract

The invention relates to the field of ship and ocean engineering, and in particular relates to an arbitrary-amplitude internal solitary wave generation and propagation process experiment system which comprises a density layering system, a large gravity type density layering water tank, a double-push-plate linkage wave making device, an internal solitary wave characteristic parameter measuring unit and a wave absorbing device. The internal solitary wave characteristic parameter measuring unit is used for synchronously measuring layered fluid density disturbance signals, and corresponding parameters are obtained after synchronous acquisition and processing of a PC terminal. And the phase velocity of the internal solitary waves is determined according to the distance between the two rows of conductivity probe groups and the time interval of the wave valley of the internal solitary waves passing through the two rows of conductivity probe groups. The experiment system has the advantages that the experiment system can realize active control on generation of internal solitary waves; the generation process, the propagation process and the extinction process of the internal solitary waves in any seawater stratification state and any amplitude can be simulated, the operation is convenient and fast, and the feasibility is high; and a new method can be provided for the mechanism research of the solitary waves in the ocean.

Description

technical field [0001] The invention relates to the field of ships and ocean engineering, in particular to an experimental system for the generation and propagation process of solitary waves within arbitrary amplitudes. Background technique [0002] Internal solitary waves are an important and frequently occurring ocean phenomenon in the ocean. The energy exchange caused by the generation, propagation and decay of internal solitary waves has a decisive impact on ocean dynamics. At the same time, the huge energy caused by internal solitary waves in the process of propagation will cause great harm to structures such as marine engineering or underwater navigation equipment, and has become an environmental factor that must be considered in marine engineering design. In order to prevent and solve the possible harm, it is urgent to study the mechanism of special marine phenomena such as strong internal solitary waves. The occurrence of internal solitary waves is very random, whic...

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Problems solved by technology

[0003] At present, most of the research on internal solitary waves is still at the generation stage, that is, for small stratified flow tanks, the propagation and extinction process of internal solitary waves cannot be fully simulated.

Moreover, most of them are limited to the situation where the densocline cannot change and the water depth is fixed

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