A multi-phase SPH model for simulating the floating OWC-breakwater integrated systems

IF 4.2 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering Pub Date : 2024-11-28 DOI:10.1016/j.coastaleng.2024.104658

Yifan Zhang , Jiapeng Pan , Mengxia Song , Haonan Jiang , Fang He , Can Huang , Ahmad Shakibaeinia

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引用次数: 0

Abstract

Oscillating water column (OWC) devices, a type of wave energy converter, have aroused great interest of researchers in the past decades due to their straightforward configuration and superior durability. In this work, an experiment on a fixed bottom-mounted OWC device is first conducted, and then the multi-phase Smoothed Particle Hydrodynamics (SPH) method with the adaptive spacing resolution technology is developed and applied into the simulation of the OWC simulation. In order to calculate the pressure in the chamber of OWC accurately, two improvements are made to the computational model: 1) a modified gas-related far-field boundary condition; 2) particle refinement near the OWC slot. The numerical results agree with the experimental results, indicating an accurate simulation of both the pneumatic and hydrodynamic process in fixed OWC devices. Subsequently, mooring systems and elastic models are validated and then coupled with the multi-phase SPH-OWC. Utilizing the proposed SPH model, a floating OWC-breakwater system with an elastic curtain below is numerically simulated. Results show that the current multi-phase SPH model can be used to investigate hydrodynamic characteristics of complex floating OWC-breakwater systems.

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来源期刊

Coastal Engineering 工程技术-工程：大洋

CiteScore

9.20

自引率

13.60%

发文量

审稿时长

3.5 months

期刊介绍： Coastal Engineering is an international medium for coastal engineers and scientists. Combining practical applications with modern technological and scientific approaches, such as mathematical and numerical modelling, laboratory and field observations and experiments, it publishes fundamental studies as well as case studies on the following aspects of coastal, harbour and offshore engineering: waves, currents and sediment transport; coastal, estuarine and offshore morphology; technical and functional design of coastal and harbour structures; morphological and environmental impact of coastal, harbour and offshore structures.