Author(s): Jiahe Zhou; Qinghe Zhang; Guangwei Liu; Jinfeng Zhang
Linked Author(s):
Keywords: Two-phase numerical wave tank Lattice Boltzmann method Phase-field method
Abstract: Due to the advantages of the lattice Boltzmann method (LBM) in interface capturing, computational efficiency, and turbulence handling, it has gradually become a powerful tool for simulating complex phenomena in two-phase flows. However, current models lack wave generation capabilities, which limits their application in real-world complex flow environments such as the maintenance of offshore structures and the design of wave energy converters. The incorporation of wave generation is crucial for simulating real wave phenomena and is key to enhancing the applicability of two-phase flow models. This study first developed a two-phase numerical wave tank based on phase-field lattice Boltzmann method (PFLBM-NWT2D). The static open boundary wave generator and active wave absorption method are implemented in the phase-field two-phase flow model. Simulations of Stokes wave, Cnoidal wave, and solitary wave validate that the developed two-phase numerical wave tank can stably generate and effectively dissipate waves. The realization of wave generation and absorption, combined with the phase-field model's inherent advantages in interface capturing, significantly enhances the model's practicality and accuracy.
Year: 2025