526 / 2024-06-29 22:42:07

Numerical Simulation on the Mass Transport during Focused Waves Passing a Submerged Breakwater based a Liquid-liquid Two-phase VOF Method

Focused wave, Numerical simulation, CIP-based model, Liquid-liquid two-phase VOF method, Hydrodynamic characteristics, Internal mixing, Mass transport.

Subtheme 8: Estuarine and Coastal Engineering > Topic 3: Fluid-Structure-Seabed Interaction

In this research, the wave-induced mass transport and internal mixing during the focused waves passing a submerged breakwater are investigated numerically by an in-house code. A Liquid-liquid two-phase VOF method based on a multi-phase flow mathematical theory is proposed and implemented in a constraint interpolation profile (CIP)-based model. The free surface and water-water interface are simultaneously tracked under the Eulerian framework. The movement rules and mass transport characteristics under the focused waves passing a submerged breakwater are analyzed. Results show that the wave height of the focused wave group has a significant impact on internal mass transport and internal mixing during focused waves passing a submerged breakwater. All the results indicate the CIP-based model coupled with the two-phase VOF method can provide a different perspective to study the mass transport and internal mixing during wave-structure interaction in coastal engineering.