An analysis method of internal isolation waves under the background streaming field

An internal solitary wave and characteristic analysis technology, applied in the field of image processing, can solve problems such as high grid density, inability to calculate internal wave action, and inability to calculate structural stress

Active Publication Date: 2020-07-07
OCEAN UNIV OF CHINA
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Problems solved by technology

[0010] As mentioned above, among the numerical studies of internal waves, one is large-scale numerical model research, which is mainly used to simulate the generation, propagation and dissipation process of internal waves in the actual ocean environment, and the results are closer to the actual conditions. Internal wave environment (considering factors such as the background flow field), but the grid density is often large, and the effect of internal waves on marine structures cannot be calculated
The other is the computational fluid dynamics internal wave tank at a small scale, which is mainly used to calculate the characteristics of the internal wave and the interaction between the internal wave and the structure under the small-scale condition. Compared with the large-scale numerical model, it is more precise, but small Theoretical methods are often used to produce internal waves in large-scale internal wave tanks. Both the waveform and the velocity field are quite different from the actual situation, and it is impossible to calculate the force of the structure in the real internal wave environment.

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  • An analysis method of internal isolation waves under the background streaming field
  • An analysis method of internal isolation waves under the background streaming field
  • An analysis method of internal isolation waves under the background streaming field

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[0022] In order to make the purpose, technical solutions and advantages of the present invention 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.

[0023] At present, the research methods of internal waves are limited to large-scale or small-scale research, and the degree of combination of theoretical research and numerical research is very low. This paper describes an algorithm that can combine large-scale numerical models with small-scale numerical calculations and theoretical methods, so as to effectively use numerical methods to create internal wave environments in actual marine environments in small-scal...

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Abstract

The present invention provides a method for analyzing the force characteristics of internal solitary waves considering the background flow field, which includes the following steps: Step 1: using a three-dimensional ocean numerical model to numerically simulate the circulation in the South China Sea; Step 2: establishing an internal wave numerical tank; 3: Determine the effect of internal waves on ocean structure through internal wave numerical tank and ocean structure network models considering background processes. The invention solves the problem that the internal wave generation method cannot consider the background flow field. For the first time, it combines the internal wave ocean model, the internal wave computational fluid dynamics method and the internal wave force theory method to form a complete consideration of the background flow field. Calculation system of internal wave generation method and force measurement method. This method can make the research on the effect of internal waves on structures closer to the actual situation, and can play a guiding role in the safe load calculation and structural design of offshore structures.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for analyzing force characteristics of internal solitary waves in consideration of a background flow field. Background technique [0002] With the continuous development of offshore drilling and the continuous exploitation of offshore oil fields, people have turned their attention to the deep sea. my country's South China Sea has rich oil and gas reserves and has become a strategic resource base for my country's offshore oil and gas production and development. However, complex seawater stratification phenomena also exist in the South China Sea, and internal wave activities are very frequent. [0003] Ocean internal waves have a huge impact and threat on marine transportation and offshore engineering structures (including offshore platforms, marine riser systems, submarine pipeline systems, mooring and cables, oil storage vessels, etc.). On April 10, 1963, the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/28G06T17/00G06F113/08G06F119/14
CPCG06T17/00G06F2119/06G06F30/20Y02A90/10
Inventor 王智峰崔俊男董胜陶山山张日
Owner OCEAN UNIV OF CHINA
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