Meshless potential flow numerical wave tank with unified wave generating and absorbing boundaries based on generalized finite difference method

Abstract

This paper presents an improved meshless potential-flow numerical wave tank (NWT) based on the generalized finite difference method (GFDM). A triangular computational domain is introduced to establish a unified wave-generation and wave-absorption framework, thereby enabling directional wave generation and effective suppression of wave reflections within a single formulation. Several benchmark problems involving wave propagation and wave-structure interaction are considered to evaluate the accuracy and convergence of the proposed model. The results demonstrate that the proposed NWT accurately predicts wave fields and hydrodynamic loads, and therefore provides an efficient and reliable numerical tool for coastal and ocean engineering applications.