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Wave simulation method based on artificial intelligence and numerical model

A numerical model and artificial intelligence technology, applied in the field of development and wave element research, can solve problems such as widely differences in applicability, poor wave field simulation effect in complex sea conditions, and different wave simulation effects in different sea areas.

Inactive Publication Date: 2019-06-07
OCEAN UNIV OF CHINA
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Problems solved by technology

[0003] However, due to the influence of ocean conditions and water depth and terrain, the applicability of existing wave numerical models based on spectral balance equations varies greatly for each region, and the wave simulation effects for different sea areas are also very different. Wave field simulation doesn't work well

Method used

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  • Wave simulation method based on artificial intelligence and numerical model
  • Wave simulation method based on artificial intelligence and numerical model

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Embodiment Construction

[0038] In order to make the purpose of the present invention, technical solutions and advantages clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] The wave model structure of the present invention is the spectrum balance equation wave model described below

[0040] The expression of the spectral balance equation wave model in the Cartesian coordinate system is

[0041]

[0042] In the formula, N represents the spectral density, and its value is the ratio of the energy spectral density E to the relative wave frequency σ; C x and C y Indicates the spatial propagation velocity of the wave in the x ...

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Abstract

The invention provides a wave simulation method based on artificial intelligence and a numerical model. The wave simulation method comprises the following steps: 1, determining a wave model structure;2, initializing wave model parameters; 3, outputting an initial condition, and calculating a fitness value of the wave model; 4, performing selection operation; 5, performing cross operation; 6, performing mutation operation; 7, calculating fitness; 8, judging whether an end condition is met or not, and if so, entering 9; if not, returning to the step 4; 9, obtaining an optimal parameter combination; and 10, substituting the parameters obtained in the step 9 into the model of the formula in the step (1) again to calculate the simulated wave again. According to the invention, an artificial intelligence technology is combined with a wave model to realize automatic selection of wave model parameters; according to the input wind speed condition and topographic condition, wave model parameterswhich more accord with the reality can be automatically selected, and the simulation accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of the development of marine resources and the research of wave elements, in particular to a wave simulation method based on artificial intelligence and numerical models. Background technique [0002] Since the rapid development of computer technology in the 1950s, the wave simulation method of spectral equation has experienced great improvement since its appearance. my country's coastal coastline is as long as 18,000 kilometers, especially the southeast coastal areas are often violated by typhoons and waves, which pose a great threat to people's production and life. In recent years, due to the impact of climate change, the increase of extreme weather conditions has increased the frequency of typhoons, extreme waves and other elements, which has caused people to reach a certain bottleneck period for wave simulation. In addition to the complexity of ocean conditions, the spectral equation parameters Both the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/12
CPCY02T90/00
Inventor 王智峰巩艺杰董胜陶山山张日
Owner OCEAN UNIV OF CHINA
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