Wave power absorption and wave loads characteristics of an annular oscillating water column (OWC) wave energy converter (WEC) with an attached reflector
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引用次数: 0
Abstract
Numerous wave energy converters (WECs) have been developed, with the oscillating water column (OWC) device garnering significant attention due to its uncomplicated design, minimal active mechanical components, robust durability, and high dependability. The synergy between offshore wind energy and wave energy presents an opportunity for their combined and coordinated utilization. This study focuses on the integration of an OWC WEC into a monopile foundation of an offshore wind turbine. The OWC features an annular cross-section with a reflector attached at the base of the air chamber. The aerodynamic and hydrodynamic coupling problem of the above integrated system is solved using the high-order boundary element method (HOBEM), with the quasi-singular integral issue arising from the thin-walled structure addressed through the adaptive Gaussian integral method. Through a systematic investigation utilizing the developed numerical model, the impact of the geometric parameters and cross-sectional shape of the reflector on wave energy capture and wave-induced loads is analyzed, considering vertical, inclined and arc-shaped reflector configurations. Findings indicate that the attached reflector not only enhances the wave energy capture in short waves but also broadens the effective frequency range for wave energy capture. Furthermore, the study reveals instances where the wave loads on the OWC device and monopile foundation can counterbalance each other at specific frequencies, resulting in the nullification of wave loads on the system. Adjusting the reflector size enables the manipulation of the frequencies at which wave loads reaches the minimum.
期刊介绍:
This journal is specifically dedicated to the dissemination of the latest developments of new engineering analysis techniques using boundary elements and other mesh reduction methods.
Boundary element (BEM) and mesh reduction methods (MRM) are very active areas of research with the techniques being applied to solve increasingly complex problems. The journal stresses the importance of these applications as well as their computational aspects, reliability and robustness.
The main criteria for publication will be the originality of the work being reported, its potential usefulness and applications of the methods to new fields.
In addition to regular issues, the journal publishes a series of special issues dealing with specific areas of current research.
The journal has, for many years, provided a channel of communication between academics and industrial researchers working in mesh reduction methods
Fields Covered:
• Boundary Element Methods (BEM)
• Mesh Reduction Methods (MRM)
• Meshless Methods
• Integral Equations
• Applications of BEM/MRM in Engineering
• Numerical Methods related to BEM/MRM
• Computational Techniques
• Combination of Different Methods
• Advanced Formulations.