Numerical simulation of wave impact on a rigid wall using a two-phase compressible SPH method

Abstract

In this paper, an SPH method based on the SPH—ALE formulation is used for modelling two-phase flows with large density ratios and realistic sound speeds. The SPH scheme is further improved to circumvent the tensile instability that may occur in the SPH simulations. The two-phase SPH solver is then used to model a benchmark problem of liquid impact on a rigid wall. The results are compared with an incompressible Level Set solver. Furthermore, a wave impact on a rigid wall with a large entrained air pocket is modelled. The SPH simulation is initialised by the output of a fully non-linear potential flow solver. The pressure distribution, velocity field and impact pressure are then analysed.

Keywords

Bibliographic record

BibTeX Citation

@article{Rafiee2015numericalsimulation,
  author = {Rafiee, A. and Dutykh, D. and Dias, F.},
  title = {Numerical simulation of wave impact on a rigid wall using a two-phase compressible SPH method},
  journal = {Procedia IUTAM},
  year = {2015},
  volume = {18},
  pages = {123--137},
  doi = {10.1016/j.piutam.2015.11.013},
  abstract = {In this paper, an SPH method based on the SPH—ALE formulation is used for modelling two-phase flows with large density ratios and realistic sound speeds. The SPH scheme is further improved to circumvent the tensile instability that may occur in the SPH simulations. The two-phase SPH solver is then used to model a benchmark problem of liquid impact on a rigid wall. The results are compared with an incompressible Level Set solver. Furthermore, a wave impact on a rigid wall with a large entrained air pocket is modelled. The SPH simulation is initialised by the output of a fully non-linear potential flow solver. The pressure distribution, velocity field and impact pressure are then analysed.},
  keywords = {Smoothed Particle Hydrodynamics, Godunov method, Arbitrary Lagrangian--Eulerian formulation, Multi-Phase Flows, Wave Impact}
}