SPH Capability

http://askarchitecture.fr/author/admin/page/4/ EPPIC can also model fluids without a mesh using Smoothed Particle Hydrodynamics. This enables water with free-surfaces to be easily modelled in arbitrary geometry, even with moving components such as rotating mill and mixers of all descriptions. In the mixer example below, not only is the beater rotating, but it is following a square path within the box – this model would be very challenging for traditional CFD, but is easy with SPH.
 

EPPIC uses a psuedo-incompressible flow formulation where the fluid pressure is calculated from the kernel-integrated density using a user defined speed of sound for the fluid. The speed of sound within water is high, which normally requires a very small timestep in the explicit solver. However, useful simulations can be run with a reduced speed of sound (and thus larger timestep) provided it remains about 3x higher than the maximum velocity within the flow.

  • User definable fluid density, viscosity, and speed of sound
  • User definable fluid particle size
  • Assess mixing performance with multiple fluid injection points with unique fluid IDs

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    The are many more applications of SPH modelling than shown above. For more information regarding the suitability of EPPIC to your application please feel free to email http://festyvesarts.fr/mailto:festyvesarts info@simphysics.com.au