A crescent wave generating method based on wave resonance technology

By using a numerical simulation method based on wave resonance technology, the problem that existing technologies cannot accurately simulate the generation of crescent waves has been solved. This method enables accurate simulation of both symmetrical and asymmetrical crescent waves, filling the gap in wave resonance simulation and enhancing the depth and scientific rigor of crescent wave research. It is applicable to marine engineering safety design.

CN122389706APending Publication Date: 2026-07-14FOURTH INSTITUTE OF OCEANOGRAPHY MINISTRY OF NATURAL RESOURCES (CHINA ASEAN COUNTRIES JOINT RESEAR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FOURTH INSTITUTE OF OCEANOGRAPHY MINISTRY OF NATURAL RESOURCES (CHINA ASEAN COUNTRIES JOINT RESEAR
Filing Date
2026-04-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies cannot accurately simulate the generation process of crescent waves in nature. Especially under conditions of steep waves and limited water depth, it is difficult to reproduce the asymmetrical and sporadic crescent wave morphology. The lack of targeted wave resonance numerical technology has resulted in insufficient research on the generation mechanism of crescent waves.

Method used

Based on wave resonance technology, the motion equation of the carrier wave is determined by potential flow theory, the carrier wave is obtained by Fourier method, and combined with symmetrical or asymmetrical multi-directional disturbance waves, the motion of the wave generator plate is controlled to superimpose the disturbance waves to generate crescent-shaped waves, and a numerical model adapted to crescent-shaped waves is constructed.

Benefits of technology

It achieves accurate simulation of symmetrical and asymmetrical crescent waves, breaks through the limitations of existing technologies, provides reliable numerical data support, and enhances the depth and scientific nature of crescent wave-related mechanism research. It is applicable to scenarios such as sea surface radar monitoring and marine structure load calculation.

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Abstract

The application relates to a crescent wave generation method based on a wave resonance technology, and comprises the following steps: determining a motion equation of a carrier wave based on a potential flow theory, and solving the motion equation through a Fourier method to obtain the carrier wave; obtaining a disturbance wave according to a symmetrical or asymmetrical multi-directional wave combination, wherein the wave number and the frequency of the disturbance wave are in a linear dispersion relationship; and generating a new crescent wave and constructing a numerical model of the new crescent wave by controlling the motion of a wave board, superimposing the carrier wave on the disturbance wave to generate a new propagation angle and amplitude. The application can systematically obtain core characteristic parameters of unstable waves, provide reliable theoretical references for wave-related physical experiments and numerical simulation, fill the technical gap of laboratory generation of asymmetrical crescent waves, support the research on the mechanism and evolution law of wave instability, and has important theoretical value and engineering application prospect.
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