Svašek Hydraulics

Coastal, harbour and river engineering consultants

 
SPH (Smoothed Particle Hydrodynamics)

DEVELOPER
    Svašek Hydraulics

MAIN FEATURES
    Direct modelling of overtopping
    waves,
    violent interaction between
    water and structure.


SPH (Smoothed Particle Hydrodynamics) is a Lagrangian particle flow model used to calculate non hydrostatic flows. Wave overtopping, violent interaction between flow and structures can be captured in great detail.

SPH is a fully Lagrangian particle method which can be used to simulate non hydrostatic water flow. SPH is a robust method especially suited to model situations with difficult water levels. Overtopping waves, or violent interaction between water and a structure can be captured in great detail.

The particles in SPH carry all the flow quantities and move with their own velocity. Interaction between particles is not calculated with a mesh, but with a smoothing function. No special treatment of the free surface is needed, it is simply the transition between an area with particles and without particles. Currently a 2D version is in use, it can be easily extended to 3D.

SPH has been applied for:

  • Dam break problem
  • Flow over a sharp weir
  • Spilling waves on a beach (Iribarren = 0.3)
  • Plunging waves on a beach (Iribarren = 0.5)