Numerically Analysis of Wave Force on a Moving Thin Plate in the Surging Direction

Abstract

AbstractThe research presents a two-dimensional numerical wave tank (NWT) simulation of a moving surface-piercing thin plate at intermediate water depth with a sloping beach. The tank model was developed by ANSYS FLUENT software, and the Navier–Stokes equations are discretized based on the finite volume method. The inflow velocity method is used to generate the nonlinear wave. The test has been conducted in three different wave steepness conditions. The research investigated the wave–structure interaction around the moving plate. Velocity vectors of the particle motion and drag coefficient are analyzed in the velocity field. Variations of drag coefficient with the wave steepness are the vital study in this paper. It shows that drag coefficient improves with the increases in wave steepness. This work directly implements a wave energy converter (WEC) to extract renewable wave energy from the ocean. On a moving thin plate in intermediate water, the influence of wave steepness is a new topic of discussion. This study gives a new idea to the researchers for developing different types of WEC in the surge direction.KeywordsDrag coefficientWave–structure interactionSecond-order stokes waveVOF methodMoving plateSloping beach