Numerical analysis of the buoy design to extract the effective kinetic wave energy

Mohamed Walid Abd Elhamed Ahmed, Ahmed S. Shehata, Mohamed Abass Kotb

DOI NO. https://doi.org/10.59660/467313 Received 06/04/2023, Revised 07/05/2023, Acceptance 20/06/2023, Available online  and Published 01/07/2023

Abstract

In many countries, sea wave energy is becoming more widely recognized as a significant and hopeful resource. The objective of this research is to evaluate the impact of alterations in buoy shape on the efficacy of the wave model by utilizing Computational Fluid Dynamics (CFD) to assess modifications in the buoy’s dynamic behavior. The buoy’s behavior is simulated using ANSYS Fluent, the volume of fluid approach, the open channel flow module, and 5th order Stokes wave models. To further investigate the wave sensitivity in challenging circumstances, Stokes waves were applied in the shallow domain at high wave steepness. The validation process consisted of a comparative analysis between the practical and mathematical results. The outcomes of a numerical fluid dynamical computation were compared, and laboratory observations were modified. For various configurations of underwater buoyancy, the drag and lift characteristics of numerical results were analyzed. The aim of this study was to identify the optimum buoy shape. The selection of this shape was based on several factors, of which the most significant were the least entropy, as well as the maximum lift and drag coefficient. Ideal shape was determined to be a spherical shape (shape B).