The current work uses numerical modelling to predict the flow behaviour in a system with a cylindrical oscillating water column (OWC) device to harness the ocean waves power. The OWC device is arranged within the two-dimensional numerical wave tank (NWT) to do this. The problem is resolved using the multiphase-based CFD method and the ANSYS Fluent software. This work includes pressure-based, transient, and unsteady solvers. The k-ω turbulence model is used in conjunction with the Reynolds Averaged Navier-Stokes (RANS) equations to capture the impact of turbulence in this numerical model. The volume of fluid (VOF) approach is used to implicitly capture the interface of two phases. This study produces irregular P-M spectrum waves using an open-channel wave generator.
The globe is in desperate need of abundant energy supplies. Discovering new energy sources and utilising them to provide energy that is environmentally friendly is a challenge. The majority of considerations, including cost, efficiency, and stability, must be considered in addition to environmental risks and ecological consequences. The aforementioned problems are resolved by renewable energy, an infinite natural energy source. Solar, wind, biomass, geothermal, hydropower, and wave energy are the main sources of renewable energy. Wave energy is currently at an important phase in its development. The primary factor favouring wave energy over solar and wind energy is its power density. Wave energy has a power density that is significantly higher than that of solar and wind energy.
There are several devices to convert wave energy to a usable form of electrical energy. The wave energy converting devices are of various types. The Oscillating Water Column (OWC) device is one such type of WEC device that is widely known for its simple maintenance. The OWC's ability to be built to function as a breakwater, shield the coastline from waves, and concurrently turn incoming waves into electrical power is by far the most significant advantage. The WECs cost will decrease as a result (according to Mahdy et.al 2024).