Virtual Wave Maker with Considering Pressure from Pre-Analysis and Proper Boundary Treatment

Abstract

The simulation or prediction the numerical problem is frequently employed in solving many problems especially cost of doing the experiment in large scale is high. Instead of conducting the experiment such as prediction impact or behaviour of the tsunami or the flood disaster, the simulation is an option. Numerous researchers are working on numerical simulations that combine different levels of situation, such as developing two-dimensional analyses to predict tsunami height and arrival times and three-dimensional analyses to assess the tsunami fluid force. However, a high precision coupling approach or bridging method between two-dimensional (2D) and three-dimensional (3D) analysis has not yet been developed. The study of boundary treatment, whether using a mesh-free technique or a particle approach, has recently been an active research area for detecting the accurate and dependable pressure close to the boundary. Fluid particles may pass through the solid barrier if the proper pressure boundary condition is not satisfied. This study proposes a coupling method using the virtual wave maker (VWM) with considering the pressure from pre-analysis using straightforward boundary treatment that can satisfy the non-homogenous Neumann boundary condition on the solid boundary and the Dirichlet condition on the water surface. The particle method such as incompressible smoothed particle hydrodynamics is adapted in this study. The suggested approach of VWM was verified with numerical testing and the findings support the suggested technique by providing a good tendency and similarity output that improved the coupling method between 3D analysis.