Computational Modelling

Smoothed Particle Hydrodynamics

Smoothed Particle Hydrodynamics (SPH) is a meshless method for solving physical problems governed by partial differential equations. It is traditionally used for fluid mechanics, but is also very useful for solid mechanics where there is fracturing, shattering, possible phase change, etc. SPH methods date from 1977, with the extension to solids being more recent. From a technique used mainly by astrophysicists, SPH has grown into a widely-recognised technique with many practical applications. An essential step in achieving this useability is the correct treatment of boundary conditions.

At CMIS, SPH is being used for many industrial problems, such as high pressure die casting (HPDC). The HPDC research and development work is undertaken in collaboration with CSIRO Manufacturing Science and Technology (CMST) within the framework of the CAST Cooperative Research Centre.

Overview and Basic Examples Mathematical basis Metal flow into a rectangular mould Validation Studies HPDC in a plate die HPDC in a circular disc with core HPDC in an S-shaped cavity HPDC in a C-shaped cavity Gravity die casting 2D Industrial Applications High pressure die casting in a channel Heat and mass transfer in an electric arc furnace 3D Industrial Applications High pressure die casting Publications

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last updated July 18, 2007 05:20 PM

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