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A hydrodynamic analysis method and device for a marine structure with a perforated plate considering the incident angle of waves

A technology of marine structures and incident angles, applied in the directions of instrumentation, design optimization/simulation, calculation, etc., can solve the problem of difficulty in effectively meeting the hydrodynamic characteristics of complex structures with perforated plates, etc., to reduce complexity, reduce The number of grids, the effect of improving computational efficiency

Active Publication Date: 2022-04-08
OCEAN UNIV OF CHINA
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Problems solved by technology

The current theoretical analysis methods have strict requirements on the shape of marine structures, and the time-domain computational fluid dynamics simulation method is difficult to effectively meet the needs of engineering to quickly analyze the hydrodynamic characteristics of complex structures with perforated plates. A fast and reasonable method for analyzing the hydrodynamic characteristics of structures with perforated plates considering the incident angle of waves

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  • A hydrodynamic analysis method and device for a marine structure with a perforated plate considering the incident angle of waves
  • A hydrodynamic analysis method and device for a marine structure with a perforated plate considering the incident angle of waves
  • A hydrodynamic analysis method and device for a marine structure with a perforated plate considering the incident angle of waves

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Embodiment Construction

[0075] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0076] This embodiment takes a simple breakwater with double rows of perforated plates as an example, and provides a numerical analysis method for the action of waves on a structure with perforated plates under the condition of incident oblique waves.

[0077] figure 1 is a schematic diagram of the interaction of oblique waves with double-row submerged perforated breakwaters. The mathematical model is established based on the Cartesian coordinate system. The origin O is set at the junction of the central axis of the two rows of perforated plates and the free water surface. The axis of the breakwater is set to the y-axis. The positive directions of the three coordinate axes must conform to the right-hand rule. The water depth of the sea area where the breakwater is locate...

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Abstract

The invention provides a hydrodynamic analysis method and device for a marine structure with a perforated plate considering the incident angle of waves, and belongs to the technical field of hydrodynamic analysis. The watershed where the perforated plate is located is divided into three regions. In region 2, the velocity potential and normal derivative of the velocity potential of the oblique incident wave satisfy the singular boundary integral equation and the supersingular boundary integral equation, and the boundary of region 2 is discretized as N Units, through the discretized boundary integral equations, establish algebraic equations, combined with the corresponding boundary conditions, solve the algebraic equations, obtain the velocity potential of each unit after discretization and the derivative of the normal line of the velocity potential, and further solve to get the band Reflection coefficient, transmission coefficient and wave force of open-plate marine structures. The invention can quickly and reasonably analyze the hydrodynamic characteristics of the structure with the perforated plate under the action of oblique waves, and provides important references for actual engineering design.

Description

technical field [0001] The invention belongs to the technical field of hydrodynamic analysis, and in particular relates to a hydrodynamic analysis method and device for a marine structure with a perforated plate considering the incident angle of waves (in consideration of the incident angle of waves). Background technique [0002] Open-hole thin-plate structures can effectively dissipate wave energy and reduce structural stress well. Therefore, marine structures with open-hole thin plates have been widely used in practical engineering. In actual engineering, the incident waves are often non-normal incidence, and it is of great significance for the safety and functional design of marine structures to be able to accurately evaluate the wave dissipation effect and wave force of thin-plate structures with openings in the case of oblique wave incidence. The current theoretical analysis methods have strict requirements on the shape of marine structures, and the time-domain computa...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/28G06F113/08G06F119/14
CPCG06F30/28G06F2113/08G06F2119/14
Inventor 赵洋刘勇李华军何舒玥
Owner OCEAN UNIV OF CHINA
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