Optimization of wave energy

Optimization of wave energy convertors

1. Introduction
Wave energy is a promising renewable energy source due to its high energy density and predictability. Among various wave energy technologies, the Seafloor Carpet Wave Energy Converter (SCWEC) offers several advantages, including low visual impact, seabed stability, and potential survivability under harsh marine conditions. The hydrodynamic performance of the SCWEC strongly depends on the geometry of the seabed-mounted structure, which affects wave reflection, transmission, pressure distribution, and energy concentration.
This project proposes a numerical investigation to determine the optimal geometric shape of a SCWEC using computational fluid dynamics (CFD) simulations in ANSYS Fluent.

2. Objectives
The main objective of this study is to optimize the geometry of the SCWEC to enhance its hydrodynamic performance and wave energy extraction capability. The specific objectives are:
To develop a numerical wave tank model in ANSYS Fluent for wave–structure interaction simulations.
To investigate the influence of geometric parameters on reflected and transmitted waves.
To identify the optimal seabed carpet geometry that maximizes wave energy concentration and reflection efficiency.

3. Methodology
A two-dimensional numerical wave tank will be developed in ANSYS Fluent using the Volume of Fluid (VOF) method to simulate free-surface wave propagation. Regular waves will be generated at the inlet boundary, while wave damping zones will be applied near the outlet to minimize artificial reflections.
The SCWEC geometry will be parameterized and a series of numerical experiments will be conducted under selected wave conditions representative of realistic marine environments. Hydrodynamic performance will be evaluated using key parameters such as reflection coefficient. The optimal geometry will be determined by comparing the hydrodynamic performance of different configurations.

4. Expected Outcomes
A validated CFD framework for SCWEC simulations in ANSYS Fluent,
Improved understanding of wave interaction with engineered seabed geometries,
Identification of an optimal SCWEC shape for enhanced wave energy performance,
Design recommendations for future experimental and practical applications.