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

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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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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