Abstract
Oscillating water column (OWC) is an advanced form of wave energy converter (WEC). This study aims at improving the efficiency of an amended OWC through a novel methodology for simulating several vertical plates within the chamber. This paper provides a numerical investigation considering one, two, three, and four vertical plates. The open field operation and manipulation (OpenFOAM) solver is verified based on the Reynolds-Averaged Navier–Stokes (RANS) equation. Results show the number and the position of plates where the convertor’s efficiency improves. The work undertaken here also revealed a reduction in the net force imposed on the convertor’s structure, especially the front wall. Consequently, adding plates acquires more efficiency with lower force on the system.
Highlights
oscillating water column (OWC); they inferred that the wave-particle distribution is relative to the arrangement of
OWCs; they inferred that the wave-particle distribution is relative to the arrangement of and the proportion of wavelength to multi-chamber spacing
The plan is to divide the single chamber into multiple sub-chambers using vertical curtain plates. All these changes are evaluated only for one OWC as a sample, this plan could be expanded for other OWCs with different geometries
Summary
This study aims at improving the efficiency of an amended OWC through a novel methodology for simulating several vertical plates within the chamber. The first part is the main chamber, and the second is the power take-off system [1] These two functional and well-integrated systems are coupled to generate energy efficiently. The OWC’s performance is greatly influenced by free surface motion and internal air pressure; accurate and low-cost analysis of the energy converters was performed under different conditions due to improving the numerical methods. L-shaped duct [2] to improve the efficiency by changing the chambers’ width and sequential, in the present paper, the innovative idea is using the fixed vertical rectangular plates inside only one chamber, which decreases the free surface’s sloshing effects and increases the device’s efficiency over a particular wave number
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