Hydrodynamic analysis method and device for ocean structure with perforated plate by considering wave incident angle

A technology of marine structures and incident angles, which is applied in the fields of instruments, electrical digital data processing, computer-aided design, etc., can solve the problems that it is difficult to effectively meet the needs of hydrodynamic characteristics of complex structures with perforated plates

Active Publication Date: 2021-09-14
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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  • Hydrodynamic analysis method and device for ocean structure with perforated plate by considering wave incident angle
  • Hydrodynamic analysis method and device for ocean structure with perforated plate by considering wave incident angle
  • Hydrodynamic analysis method and device for ocean structure with perforated plate by considering wave incident angle

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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 an ocean structure with a perforated plate by considering a wave incident angle, and belongs to the technical field of hydrodynamic analysis. A drainage basin where the perforated plate is located is divided into three areas, in the second area, the speed potential of an oblique incident wave and the normal derivative of the speed potential meet a singular boundary integral equation and a super singular boundary integral equation, the boundary of the second area is discretized into N units, an algebraic equation set is established through the discretized boundary integral equation, corresponding boundary conditions are combined, and the algebraic equation set is solved to obtain the velocity potential of each unit after discretization and the velocity potential external normal derivative, and further solving is carried out to obtain the reflection coefficient, the transmission coefficient and the wave force of the ocean structure with the perforated plate. According to the method, the hydrodynamic characteristics of the structure with the perforated plate under the action of the oblique waves can be rapidly and reasonably analyzed, and important reference is provided 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 Applications(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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